Zootaxa 3736 (5): 501–535 ISSN 1175-5326 (print edition) www.mapress.com/zootaxa/ Article ZOOTAXA Copyright © 2013 Magnolia Press ISSN 1175-5334 (online edition) http://dx.doi.org/10.11646/zootaxa.3736.5.5 http://zoobank.org/urn:lsid:zoobank.org:pub:961BBB7C-5E41-43B5-939A-F0327ED3D879

Review of the largest species group of the New World seed genus Sennius Bridwell (Coleoptera: Chrysomelidae), with host associations

JÉSSICA HERZOG VIANA1,2 & CIBELE STRAMARE RIBEIRO-COSTA1 1Laboratório de Sistemática e Bioecologia de Coleoptera (Insecta), Departamento de Zoologia, Universidade Federal do Paraná, Caixa Postal 19020, 81531-980, Curitiba, Paraná, Brasil 2Corresponding author. E-mail: [email protected]

Table of contents

Abstract ...... 501 Introduction ...... 502 Material and methods ...... 502 Sennius abbreviatus group ...... 503 Key to the species of Sennius abbreviatus group ...... 506 Sennius abbreviatus (Say, 1824) ...... 507 Sennius bondari (Pic, 1929) ...... 509 Sennius durangensis Johnson & Kingsolver, 1973 ...... 510 Sennius flinte sp nov...... 512 Sennius lawrencei Johnson, 1977 ...... 514 Sennius lebasi (Fåhraeus, 1839) ...... 516 Sennius leucostauros Johnson & Kingsolver, 1973 ...... 518 Sennius lojaensis (Pic, 1933) ...... 520 Sennius medialis (Sharp, 1885)...... 521 Sennius nappi Ribeiro-Costa & Reynaud, 1998 ...... 524 Sennius rufomaculatus (Motschulsky, 1874) ...... 525 Sennius transversesignatus (Fåhraeus, 1839) ...... 527 Sennius trinotaticollis (Pic, 1930) ...... 529 Sennius vivi sp nov...... 530 Acknowledgements ...... 532 References ...... 532

Abstract

Sennius Bridwell is a New World genus of Bruchinae. Most species are placed in eight groups. In this study the species of the S. abbreviatus group are reviewed based on characters of the external morphology and the male genitalia. The group includes 14 species, two of which are new: Sennius abbreviatus (Say, 1824), S. bondari (Pic, 1929), S. durangensis John- son & Kingsolver, 1973, S. lawrencei Johnson, 1977, S. lebasi (Fåhraeus, 1839), S. leucostauros Johnson & Kingsolver, 1973, S. lojaensis (Pic, 1933), S. medialis (Sharp, 1885), S. nappi Ribeiro-Costa & Reynaud, 1998, S. rufomaculatus (Motschulsky, 1874), S. transversesignatus (Fåhraeus, 1839), S. trinotaticollis (Pic, 1930), S. vivi sp. nov. and S. flinte sp. nov. The S. abbreviatus group differs from other groups by the pattern of sclerites and the shape of the internal sac of the male genitalia, and has three subgroups, defined here. The lectotype of S. lebasi is designated. New host plant records are presented for S. lojaensis and S. transversesignatus, and new distribution records for S. lawrencei, S. lojaensis and S. tri- notaticollis.

Key words: Bruchinae, Sennius abbreviatus group, Nearctic, Neotropical

Accepted by L. Chamorro: 31 Oct. 2013; published: 15 Nov. 2013 501 Introduction

The subfamily Bruchinae is a monophyletic subfamily of Chrysomelidae with about 1,700 species grouped into six tribes, nine subtribes and 67 genera (Ribeiro-Costa & Almeida 2012). Sennius Bridwell, 1946 is placed in the most diverse tribe, Bruchini, which includes three subtribes (Borowiec, 1987). Sennius belongs in the Acanthoscelidina, an artificial assemblage which includes about 800 species (Johnson & Romero 2004) distributed in the New and Old World and constitutes more than a half of all Bruchinae species (Silva & Ribeiro-Costa 2008). Species of Sennius feed on of the subtribe Cassiinae, mostly those in the genus Mill., including some weeds like S. obtusifolia (Linn.) Irwin & Barneby and S. occidentalis (Linn.) Irwin & Barneby, which are difficult to control with chemicals (Mackey et al. 1997). Sennius comprises 62 Neartic and Neotropical species, and Bridwell (1946) defined this genus by the presence of a carina extending near the base of the inner margin of the hind femur, and a tooth posterior to this carina. Subsequent authors such as Bottimer (1961, 1968) and Johnson (1968) transferred eight species originally described in Bruchus Linnaeus, 1767 to Sennius. Johnson & Kingsolver (1973) made the most relevant contribution by reviewing the North and Central American species of the genus. They described 10 new species and redescribed 17, placing them in seven species-groups based primarily on the patterns of the sclerites of the male genitalia. After that, one more species group was added to Sennius (L’Argentier & Kingsolver 1994) and other six species were described and placed into the eight recognized groups (Kingsolver & Whitehead, 1975; Johnson 1977, 1984; L’Argentier & Kingsolver 1994; Kingsolver & Ribeiro-Costa 2001; Viana & Ribeiro-Costa 2013). However, a total of 22 species from South America have been left out of those groups; their original descriptions contain only comments comparing them with other Sennius species (eg Pimentel 1997; Ribeiro-Costa & Costa 2002; Silva et al. 2003; Sari & Ribeiro-Costa 2005; Sari et al. 2005). According to Johnson & Kingsolver (1973), only the study of all South American Sennius and their host plants will enable us to have a comprehensive view of this genus, and to more precisely define its species groups. The S. abbreviatus group comprises eight species, Sennius abbreviatus (Say, 1824), S. durangensis Johnson & Kingsolver 1973, S. lawrencei Johnson 1977, S. lebasi (Fåhraeus, 1839), S. leucostauros Johnson & Kingsolver 1973, S. medialis (Sharp, 1885), S. rufomaculatus (Motschulsky, 1874) and S. trinotaticollis (Pic, 1930), defined mainly by integument coloration, elytral pubescence and male genitalic characters. Johnson & Kingsolver (1973) also established two subgroups: subgroup 1 (S. abbreviatus, S. rufomaculatus), and subgroup 2 (S. durangensis, S. medialis); they also mentioned three species (S. lebasi, S. leucostauros, S. trinotaticollis) as “…branches of these subgroups…”. Even though S. lawrencei was added in the S. abbreviatus group after Johnson & Kingsolver (1973), its placement in subgroups has not been discussed. In this contribution we address the known species of the S. abbreviatus group, describe two new species and add four more into the group, now totaling 14 species. Ten of those species occur in South America. The species are described and illustrated using characters such as pubescence, integument color and sculpture and male genitalia. We provide photos, and micrographs of the hind legs, using techniques that were not available to Johnson & Kingsolver (1973).

Material and methods

Specimens from the following collections were consulted and the name of curators who loaned material are given within parentheses:

BMNH British Museum of Natural History, London, GBR (M. V. L. Barclay, photos by S. P. Rosa) CAS California Academy of Sciences, San Francisco, USA (N. Penny) CEAM Centro de Entomologica y Acarologia, Montecillo, MEX (J. R. Nápoles) CNCI Canadian National Collection of , Ottawa, CAN (A. E. Davies) DZUP Coleção de Entomologia Pe. J. S. Moure, Curitiba, BRA (C. S. Ribeiro-Costa) FMNH Field Museum of Natural History, Illinois, USA (R. Bieler) FSCA Florida State Collection of , Gainesville, USA (M. C. Thomas) MCZ Museum of Comparative Zoology, Harvard University, Cambridge, USA (B. D. Farrell)

502 · Zootaxa 3736 (5) © 2013 Magnolia Press VIANA & RIBEIRO-COSTA. MNRJ Museu Nacional/Universidade Federal do Rio de Janeiro, Rio de Janeiro, BRA (M. A. Monné) MZSP Museu de Zoologia, Universidade de São Paulo, São Paulo, BRA (S. Casari) NHRS Swedish Museum of Natural History, Stockholm, SWE (B. Viklund) TAMU Texas A & M University, College Station, Texas, USA (E. Riley) USNM National Museum of Natural History, Washington, USA (D. G. Furth; A. S. Konstantinov) ZMUC Zoological Museum, University of Copenhagen, Copenhagen, DNK (A. Solodovnikov) ZMUM Zoological Museum, Moscow State University, Moscow, RUS (N.B Nikitsky)

The identification of specimens was based on Johnson & Kingsolver (1973), original descriptions of species, comparisons with type specimens, when available, and/or material previously identified by specialists in the group. Among the species of the S. abbreviatus group, we were able to study type material of Bruchus bivulneratus Horn, 1873 (= Sennius abbreviatus) (by photo), S. bondari (Pic, 1929) (by photo), S. durangensis, S. lebasi, S. leucostauros, S. lawrencei, S. nappi Ribeiro-Costa & Reynaud, 1998 and S. transversesignatus (Fåhraeus, 1839). Additionally, we examined specimens identified by comparison with types by the bruchine specialist J. M. Kingsolver of the following species: S. medialis, S. lojaensis (Pic, 1933) and S. trinotaticollis. For more details, see ‘Results’ in ‘Type material’. The designation of lectotype follows ICZN (1999), which recommends that lectotype designation ‘should be done as part of a revisionary or other taxonomic work to enhance the stability of nomenclature’ (Declaration 44, Amendment of Article 74.7.3; ICZN 1999). The complete redescriptions, type material and detailed diagnoses of S. bondari and S. nappi are found in Viana & Ribeiro-Costa (2013). Here we present only a description of the main diagnostic characters and a summary of the distribution, host plant and diagnoses of these species. Labels from the type material are organized in sequence from top to bottom as follows: Each label within double quotes (“ ”), lines of text on a given label separated by a backslash (\) and the label color enclosed by parentheses. Information from additional material is organized, when complete, as follows: country (Caps): district/state/province (bold): locality (italic): number of specimens, date (day/month[in roman numerals]/year), collector, host plant and abbreviation of institution (enclosed by parentheses). The geographic distribution of each species follows Viana & Ribeiro-Costa (2013), which was based on label data and the published literature. The distribution of each species is listed in the text by country and followed, when possible, by district/state/province, enclosed by parentheses. The following abbreviations were used for countries in this paper: BIZ, Belize; BOL, Bolivia; BRA, Brazil; CAM, Canada; CHI, Chile; COL, Colombia; CRC, Costa Rica; DNK, Denmark; DOM, Dominican Republic; ESA, El Salvador; GBR, Great Britain; GRN, Grenada; GLP, Guadalupe; GUA, Guatemala; HON, Honduras; JAM, Jamaica; MEX, Mexico; NCA, Nicaragua; PAN, Panama; PUR, Puerto Rico; RUS, Russia; SWE, Sweden; TRI, Trinidad and Tobago; USA, United States of America; VEN, Venezuela. We also followed Viana & Ribeiro-Costa (2013) in naming the host plants. All plant names were checked using the International Legume Database and Information Service (ILDIS), and grouped according to their current classification (APGIII 2003) into family (capital letters), subfamily (bold), and species, in alphabetical order. The study of morphological characters, drawings, micrographs, images of male genitalia and external morphology and terminology follows Viana & Ribeiro-Costa (2013) and the descriptions of male genitalia follow the terminology of Romero & Johnson (1999). Measurements were done using a micrometric ocular in a stereoscopic microscope Wild M5, in which the following abbreviations are used: BL, body length (from anterior margin of pronotum to posterior margin elytra); BW, body width (the largest wide of elytra).

Sennius abbreviatus group

Diagnosis and comments. This group comprises 14 species, Sennius abbreviatus, S. bondari, S. durangensis, S. lawrencei, S. lebasi, S. leucostauros, S. lojaensis, S. medialis, S. nappi, S. rufomaculatus, S. transversesignatus, S. trinotaticollis, S. vivi sp. nov. and S. flinte sp. nov. (Table 1). It is based on the following characters of the male genitalia: internal sac trilobed (Fig. 7); dense rows of spicules on subapical region, usually short, forming a mass (Fig. 7, SMR); submedian region with two groups of large spicules (Fig. 7, SAR); latero-basal lobes with short spicules (Fig. 7, LAL).

REVIEW OF THE SENNIUS ABBREVIATUS SPECIES GROUP Zootaxa 3736 (5) © 2013 Magnolia Press · 503 Johnson & Kingsolver (1973) defined the S. abbreviatus group and subgroups mainly based on the color of the integument, elytra pubescence and male genitalic characters. In this work, however, we allocated species to this group and its subgroups based only on characters of the male genitalia, especially the sclerites of the internal sac. Most species of the S. abbreviatus group have black elytra each with red-orange or brown maculae, but S. bondari, S. leucostauros and S. lojaensis have entirely black elytra and there are still other species that display intraspecific variation in color, from black with red-orange maculae to entirely black (S. nappi, S. lebasi and S. rufomaculatus).

TABLE 1. Sennius species of the S. abbreviatus group and its subgroups with associated host plants. NHP: New host plant record. Subgroup S. abbreviatus group Host Plants 1 S. abbreviatus (Say, 1824) Senna marilandica S. lawrencei Jonhson, 1977 Senna reticulata S. lojaensis (Pic, 1933) Senna multijuga (NHP) S. nappi Ribeiro-Costa & Reynaud, 1998 Senna multijuga, S. neglecta var. oligophylla, S. neglecta var. neglecta, S. rugosa, S. occidentalis, S. obtusifolia S. rufomaculatus (Motschulsky, 1874) Amomum sp.; Senna alata, S. occidentalis, S. obtusifolia, S. hirsuta, S. cobanensis, S. uniflora, S. galegifolia, S. polyphylla, S. tora S. transversesignatus (Fåhraeus, 1839) Senna appendiculata (NHP) S. vivi sp. nov. Senna obtusifolia 2 S. durangensis Jonhson & Kingsolver, Senna covesii 1973 S. medialis (Sharp, 1885) Senna hirsuta, S. occidentalis S. bauhinioides, S. multiglandulosa, S. obtusifolia S. flinte sp. nov. Senna multijuga 3 S. bondari (Pic, 1929) Senna multijuga, S. occidentalis, S. surattensis, S. splendida, S. pistaciifolia, S. pendula, S. bicapsularis, S. alata, S. spectabilis, S. bauhinioides, S. macranthera, S. neglecta var. oligophylla, S. neglecta var. neglecta S. appendiculata, Memora peregrina S. lebasi (Fåhraeus, 1839) Senna hirsuta, S. occidentalis, S. reticulata, S. cobanensis, S. pendula, S. obtusifolia, S. sophera, S. uniflora, S. bicapsularis, S. galegifolia, S. hayesiana, S. septemtrionalis, S. polyphylla, S. tora, Acacia farnesiana, herbacea S. leucostauros Jonhson & Kingsolver, Senna pendula, S. bicapsularis 1973 S. trinotaticolis (Pic, 1930) Senna hayesiana, S. oxyphylla, S. macranthera

It was possible to delimit three subgroups, as proposed by Johnson & Kingsolver (1973) (Table 1). Subgroup 1 includes S. abbreviatus, S. lawrencei, S. nappi, S. rufomaculatus, S. lojaensis, S. transversesignatus and S. vivi sp. nov., the last three are newly included. Species in this group are characterized by the male genitalia, which are similar among the included species, and the basic pattern of sclerites described for the S. abbreviatus group (Figs 7, 36, 73, 81, 61, 90, 106). This basic pattern is modified in the other seven species. Subgroup 2 comprises Sennius durangensis, S. medialis and S. flinte sp. nov., the latter species newly included. This subgroup is characterized by the male genitalia weakly sclerotized (Figs 19, 70, 27) and the latero-basal lobes of the internal sac narrower than in other species of the group. Subgroup 3 includes S. lebasi, S. leucostauros, S. trinotaticollis and S. bondari, the latter species newly included. All species in this subgroup lack the two large groups of spicules on the submedian region of the internal sac, and have spicules on the basal region, covering the lobes or forming more than two dense clusters (Figs 45, 53, 98, 11). Distribution. Nearctic region: MEX and USA. Neotropical region: BIZ, BOL, BRA, CHI, COL, CRC, DOM, ESA, GRN, GLP, GUA, HON, JAM, MEX, NCA, PAN, PUR, TRI and VEN.

504 · Zootaxa 3736 (5) © 2013 Magnolia Press VIANA & RIBEIRO-COSTA. Biology. The most common way to collect adult Sennius is by rearing them from pods. Specimens have also been collected by flight intercept and Malaise traps. The species of the S. abbreviatus group are strongly associated with Senna Mill. (Family , subfamily ), where their larvae develop, consuming the seeds. One species, S. nappi, was found on flowers of Vochysia divergens Pohl, but this is not listed as a host plant since larvae have not been reared on the seeds of this plant. However, there are records of other hosts besides Senna. The following species have the greatest number of hosts plants (others genera besides Senna in parenthesis): S. rufomaculatus, 10 species (Amomum Roxb.); S. bondari, 14 species (Memora Miers); S. lebasi, 16 species (Acacia Mill. and Sebasnia Scop.) (Table 1). Different Bruchinae species may be found on the same plant (Viana & Ribeiro-Costa 2013). The following species are, as far as we know, associated with only one host plant: S. abbreviatus, S. lawrencei, S. lojaensis (with new host record), S. transversesignatus (with new host record) and S. durangensis, S. flinte sp. nov. and S. vivi sp. nov. (Table 1). The following host plant species have the greatest number of records of Sennius species from the S. abbreviatus group eating their seeds (each with five Sennius species recorded): S. obtusifolia and S. occidentalis (Table 2).

TABLE 2. Host plants associated to species of Sennius abbreviatus group and its subgroups. Host plants S. abbreviatus group Acacia farnesiana (Linn.) Willd. S. lebasi (subgroup 3) Amonum sp. S. rufomaculatus (subgroup 1) Memora peregrina (Miers) Sandwith S. bondari (subgroup 3) Sesbania herbacea (Mill.) McVaugh S. lebasi (subgroup 3) Senna alata (Linn.) Roxb. S. rufomaculatus (subgroup 1) S. bondari (subgroup 3) Senna appendiculata (Vogel) Wiersema S. transversesignatus (subgroup 1) S. bondari (subgroup 3) Senna bauhinioides (Gray) Irwin & Barneby S. medialis (subgroup 2) S. bondari (subgroup 3) Senna bicapsularis (Linn.) Roxb S. bondari (subgroup 3) S. lebasi (subgroup 3) S. leucostauros (subgroup 3) Senna cobanensis (Britton & Rose) Irwin & Barneby S. rufomaculatus (subgroup 1) S. lebasi (subgroup 3) Senna covesii (A.Gray) Irwin & Barneby S. durangensis (subgroup 2) Senna galegifolia (Linn.) Barneby & Lourteig S. rufomaculatus (subgroup 1) S. lebasi (subgroup 3) Senna hayesiana (Britton & Rose) Irwin & Barneby S. lebasi (subgroup 3) S. trinotaticollis (subgroup 3) Senna hirsuta (Linn.) Irwin & Barneby S. rufomaculatus (subgroup 1) S. medialis (subgroup 2) S. lebasi (subgroup 3) Senna macranthera (Collad.) Irwin & Barneby S. bondari (subgroup 3) S. trinotaticollis (subgroup 3) Senna marilandica (Linn.) Link. S. abbreviatus (subgroup 1) Senna multiglandulosa (Jacq.) Irwin & Barneby S. medialis (subgroup 2) Senna multijuga (Rich.) Irwin & Barneby S. lojaensis (subgroup 1) S. nappi (subgroup 1) S. flinte sp. nov. (subgroup 2) S. bondari (subgroup 3) Senna neglecta (Vogel) Irwin & Barneby S. nappi (subgroup 1) S. bondari (subgroup 3) ...... continued on the next page

REVIEW OF THE SENNIUS ABBREVIATUS SPECIES GROUP Zootaxa 3736 (5) © 2013 Magnolia Press · 505 TABLE 2. (Continued) Host plants S. abbreviatus group Senna obtusifolia (Linn.) Irwin & Barneby S. nappi (subgroup 1) S. rufomaculatus (subgroup 1) S. medialis (subgroup 2) S. lebasi (subgroup 3) S. vivi sp. nov. (subgroup 1) Senna occidentalis (Linn.) Irwin & Barneby S. nappi (subgroup 1) S. rufomaculatus (subgroup 1) S. medialis (subgroup 2) S. bondari (subgroup 3) S. lebasi (subgroup 3) Senna oxyphylla (Kunth) Irwin & Barneby S. trinotaticollis (subgroup 3) Senna pendula (Willd.) Irwin & Barneby S. bondari (subgroup 3) S. lebasi (subgroup 3) S. leucostauros (subgroup 3) Senna pistaciifolia (Kunth) Irwin & Barneby S. bondari (subgroup 3) Senna polyphylla (Jacq.) Irwin & Barneby S. rufomaculatus (subgroup 1) S. lebasi (subgroup 3) Senna reticulata (Willd.) Irwin & Barneby S. lawrencei (subgroup 1) S. lebasi (subgroup 3) Senna rugosa (G. Don) Irwin & Barneby S. nappi (subgroup 1) Senna septemtrionalis (Viv.) Irwin & Barneby S. lebasi (subgroup 3) Senna sophera (Linn.) Roxb. S. lebasi (subgroup 3) Senna spectabilis (DC) Irwin & Barneby S. bondari (subgroup 3) Senna splendida (Vogel) Irwin & Barneby S. bondari (subgroup 3) Senna surattensis (Burm.f.) Irwin & Barneby S. bondari (subgroup 3) Senna tora (Linn.) Roxb S. rufomaculatus (subgroup 1) S. lebasi (subgroup 3) Senna uniflora (Mill.) Irwin & Barneby S. rufomaculatus (subgroup 1) S. lebasi (subgroup 3)

Key to the species of Sennius abbreviatus group

1 Integument of elytra completely black ...... 2 - Integument of elytra red-orange to dark brown; if black, with maculae ...... 6 2 Elytra with horizontal, wide and sparse strip of setae covering more than three quarters of anterior region (Fig. 75) ...... S. rufomaculatus (Motschulsky, 1874). - Elytra with horizontal, narrow and dense strip of setae covering less than half of anterior region ...... 3 3 Elytra at 3rd strial interval with white setae on mesoapical region, except at extreme apex ...... 4 - Elytra at 3rd strial interval with white setae medially or absent...... 5 4 Elytra with rounded patch of pale setae medially (Fig. 9) ...... S. bondari (Pic, 1929). - Elytra with white and gold setae forming horizontal strip medially (Fig. 47) . . . S. leucostauros Johnson & Kingsolver, 1973. 5 Elytra with white setae forming zig zag strip (Fig. 55)...... S. lojaensis (Pic, 1933). - Elytra with white setae forming horizontal strip wider medially (Fig. 72) ...... S. nappi Ribeiro-Costa & Reynaud, 1998. 6 Integument of elytra without maculae ...... 7 - Integument of elytra with maculae ...... 9 7 Elytra with homogeneous golden and brown setae except at 1st and 2nd interstices with white setae (Fig. 29) ...... S. lawrencei Johnson, 1977. - Elytra with horizontal irregular or regular strip of pale setae on submedian region ...... 8 8 Elytra with regular horizontal strip of pale setae on submedian region (Fig. 100) ...... S. vivi sp. nov. - Elytra with patches forming an irregular horizontal strip of pale setae on submedian region (Fig. 21) ...... S. flinte sp. nov. 9 Elytral setae evenly sparsely distributed or only dense patch at base of 3rd and 5th interstices ...... 10 - Elytral setae unevenly distributed with strip or wide dense patch of pale setae at anterior region ...... 13

506 · Zootaxa 3736 (5) © 2013 Magnolia Press VIANA & RIBEIRO-COSTA. 10 Base of 3rd and 5th interstices with dense patch of setae or integument with pale to dark brown maculae (Fig. 75) ...... S. rufomaculatus (Motschulsky, 1874). - Base of 3rd and 5th interstices without dense patch of setae or integument with red-orange maculae...... 11 11 Pronotum with denser setae laterally (Fig. 1) ...... S. abbreviatus (Say, 1824). - Pronotum with evenly distributed setae ...... 12 12 Elytra in general with vertically elongated maculae (Fig. 13). Male genitalia with hinge sclerites thin (Fig. 19)...... S. durangensis Johnson & Kingsolver, 1973. - Elytra with horizontally elongated maculae (Fig. 63). Male genitalia with hinge sclerites with apex broader (Fig. 70) ...... S. medialis (Sharp, 1885). 13 Elytra with vertical strip of pale setae along suture ...... 14 - Elytra with horizontal stripor rounded patch of pale setae on submedian region...... 15 14 Elytron without pale setae on 3rd strial interval (Fig. 29) ...... S. lawrencei Johnson, 1977. - Elytron with pale setae on 3rd strial interval (Fig. 92) ...... S. trinotaticollis (Pic, 1930). 15 Integument of elytra with regularly rounded red-orange maculae and patch of pale setae (Fig. 63) . . S. medialis (Sharp, 1885). - Integument of elytra with horizontal strip or irregularly shaped red-orange to dark brown maculae with horizontal strip of pale setae...... 16 16 Disc of pronotum with dense patch of setae (Fig. 38) ...... S. lebasi (Fåhraeus, 1839). - Disc of pronotum with evenly and sparsely distributed setae ...... 17 17 Male genitalia with hinge sclerites strongly curved and thin, but not reaching apex of mass of spicules on subapical region (Fig. 90)...... S. transversesignatus (Fåhraeus, 1839). - Male genitalia with hinge sclerites moderately curved with apex and base broader, reaching apex of mass of spicules on sub- apical region (Fig. 73) ...... S. nappi Ribeiro-Costa & Reynaud, 1998.

Sennius abbreviatus (Say, 1824) (Figs 1–8)

Curculio abbreviatus Melsheimer, 1806: 30 (catalog name). Bruchus abbreviatus Say, 1824: 308 (description); Dohrn 1879: 187 (citation); Pic 1913: 19 (catalog). Sennius abbreviatus: Bottimer 1968: 1025 (, distribution); Johnson 1969: 55 (list); Johnson & Kingsolver 1973: 17 (description, key, figures, type designation, taxonomy, host); Johnson & Kingsolver 1981: 419 (catalog, distribution); Udayagiri & Wadhi 1989: 99 (catalog); Baskin & Baskin 1977: 61 (biology); Kingsolver 2004: 200 (key, diagnosis, figures, host, distribution); Johnson & Romero 2004: 404 (biology). Bruchus bivulneratus Horn, 1873: 325 (description, key, distribution); Dohrn 1879: 187 (citation); Riley & Howard 1892: 494 (biology, host); Schaeffer 1907: 293 (distribution); Blatchley 1910: 1237 (catalog); Fall 1910: 165 (key); Cushman 1911: 494 (biology, host); Pic 1913: 19 (catalog); Zacher 1952: 461 (catalog); Bottimer 1968: 1025 (synonym). Mylabris bivulneratus: Leng 1920: 305 (catalog). Sennius bivulneratus: Bradley 1947: 39; Blackwelder & Blackwelder 1948: 45 (catalog); De Luca 1965: 68 (catalog); Johnson 1968: 1270 (type designation); Schoonhoven 1976: 692 (distribution).

Redescription. Dimension. BL: 2.1–3.0 mm; BW: 1.5–2.1 mm. Integument color. Head black with maxillary and labial palpi dark brown; antennomeres 1–4 red-orange to reddish brown, 5–11 red-orange to brown (Figs 2, 3). Elytra black, each with rounded red-orange macula covering most of anterior region from 2nd or 3rd interstices to behind humerus. Remaining thorax black (Figs 1, 2, 4). Foreleg pale to dark brown. Mid femur usually dark brown to black. Mid and hind tibiae pale brown to black. Hind femur dark brown to black, sometimes with small area of lighter color. Tarsus red-orange (Fig. 2). Pubescence. Head with small white dense setal patch posterior to post-ocular lobe, remainder of head with sparse white setae; labrum with scattered golden setae, denser at apex (Fig. 3). Pronotal setae medially sparse golden and brown, sometimes laterally denser and white. Elytra with sparse golden and brown setae (Fig. 1). Pygidium with sparse white setae, denser at base, forming dense medial patch, or sometimeswhite median vertical strip (Fig. 4). Ventral surface with moderately dense white setae (Fig. 2). Head with convex frons, frontal carina slightly evident and ocular sinus deep, more than half length of eye (Fig. 3). Antennomeres 1 and 3 filiform, 2 and 4 moniliform, 5–10 wider than long, 11 globular but pointed apically. Disc of pronotum strongly sulcate at basal lobe. Elytra without denticles at strial base. Hind femur on ventral margin with slightly prominent tooth (0.01–0.05 mm), not microserrate (Fig. 5). Hind tibia with lateroventral carina not reaching half its length (Fig. 6). Male genitalia. Median lobe strongly sclerotized, about 5.6 times longer than wide medially, apex slightly expanded; ventral valve rounded with round apex and lateral margins convex. Internal sac with hinge sclerites

REVIEW OF THE SENNIUS ABBREVIATUS SPECIES GROUP Zootaxa 3736 (5) © 2013 Magnolia Press · 507 short, slightly curved with apex broader; apical region without spicules; subapical region with long and dense group of short spicules; submedian region with two lateral groups of long spicules; latero-basal lobes of internal sac with spicules denser at base; basal region with spicules and denticles denser near gonopore (Fig. 7). Tegmen with lateral lobes separated by emargination about 0.9 times their length (Fig. 8).

FIGURES 1–8. Sennius abbreviatus. 1, dorsal view; 2, lateral view; 3, head, frontal view; 4, pygidium; 5, part of hind leg, internal view; 6, hind tibia, external view; 7, 8, male genitalia: 7, median lobe with hinge sclerites (HE), others sclerites magnified and latero-basal lobes (LBL) of internal sac; 8, tegmen. AR: apical region; SMR: submedian region; SBR: subbasal region; BR: basal region.

Material examined. Types: Bruchus abbreviatus Say, 1824. In the revision of Sennius, Johnson & Kingsolver (1973) indicated the type was lost. Bottimer (1968) synonymized Bruchus bivulneratus Horn, 1873 with Bruchus abbreviatus and Johnson, in the same year, designated a lectotype for Bruchus bivulneratus (Type locality: “Southern and Western States”) which is deposited in MCZ. This material was studied based on photos available in MCZ website and male genitalia illustrated in the revision of Johnson & Kingsolver (1973). Note: Until the publication of the work of Mawdsley (1993) it was believed the entire Say collection was lost, however this author recorded 56 species described by Say and deposited in MCZ. However, Bruchus abbreviatus was not listed in this paper. Non-type (82): No locality: 1, 16/III/[19]76 (USNM); USA: Arkansas: Washington: 1, 18/IV/1906 (TAMU); 3, 7/VIII/1907 (TAMU). New York: 1, no further data (TAMU). Illinois: Pope: 13, 27/XI/[19]51, E. E. Piler. (TAMU); St. Clair: 4, Kahokia, 5/VIII/1902, G. W. Bock (TAMU). Indiana: N. Albany: 1, no further data (USNM). Ohio: Athens: 2, 5/X/[19]38, L. P. Reynouds (CNCI). Wooster: 3, 17/VI/2000, A. E. Miller (2, FSCA; 1, TAMU). Pennsylvania: No location: 2, 1929 (TAMU). Camphill: 11, 1923(TAMU); 1, 4/VIII(TAMU). Kansas: Topeka: 1, Popenoe (USNM). Onaga: 1, 15/VI/[19]23, Crevecoeur (TAMU). Missouri: No location: 1, W. G. Dietz (TAMU); 1, Chittenden (USNM). St. Louis: 1, V/[19]22 (TAMU); 4, “St. Louis - Mo.” (CNCI); Creve Coeur: 1, Lake St Louis, IX-16-94, G. W. Bock (TAMU). Virginia: 2, no further data, (1, TAMU; 1, NHRS). Fairfax: 2, 26/IV/1928, L. J. Bottimer (CNCI); 2, 6/XII/1928, L. J. Bottimer (CNCI). Lee: 2, Hubbard & Schwarz (USNM). Vienna: 1, 1928, L. J. Bottimer (CNCI); 3, 23/III/[19]28, L. J. Bottimer (CNCI); 3, 2/VI/[19]28, L. J. Bottimer (CNCI). Maryland: No location: 3, Otto Lugger (TAMU). Odenton: 1, 27/VII/1918, H. Dietrich (TAMU). Tennessee:

508 · Zootaxa 3736 (5) © 2013 Magnolia Press VIANA & RIBEIRO-COSTA. Nashville: 1, VIII/[19]12, Osburn. (USNM). Guyot Smoky Mountains: 1, 20/VII/1940, Dieke (USNM). North Carolina: No locality: 1, C. W. Leng (TAMU); 1, Chevrol. (NHRS). Georgia: GarIowns: 2, 17/VIII/[19]68, Jan Foster (USNM). Kentucky: Brooklyx: 1, Cornell U., 29/VI/1925 (TAMU); 1, Crew, (CNCI); North America: 1, Germar (NHRS); 1, Sturm. (NHRS). Distribution. USA (Washington, New York, Illinois, Indiana, Ohio, Pennsylvania, Kansas, Missouri, Virginia, Maryland, Tennessee, North Carolina, Georgia, Arkansas, Kentucky, Missouri). Host plant. FABACEAE: Caesalpinioideae: Senna marilandica (Linn.) Link. Diagnosis. Sennius abbreviatus (subgroup 1) is externally similar to S. durangensis, S. medialis (subgroup 2) and S. rufomaculatus (subgroup 2) in having the pubescence regularly distributed on almost all elytra and the red- orange maculae. Sennius abbreviatus differs by having most of the macula at the basal region of each elytron which in S. durangensis is more elongated occupying most of each elytron; in S. rufomaculatus the maculae are usually irregular; in S. medialis the maculae are more oval and smaller at the base and apex. Besides, S. abbreviatus differs in the distribution of pubescence on the dorsum, which is sparse in S. abbreviatus, and moderately dense in S. medialis; in the coloration of setae on the dorsum, which is white and brown in S. abbreviatus and only white or white and gold in S. durangensis; without dense patches on 3rd and 5th interstices in S. abbreviatus and present in S. rufomaculatus; and in the pubescence pattern on pygidium, which is homogeneous in S. abbreviatus and S. durangensis and denser basally in S. medialis and S. rufomaculatus. The male genitalia of S. abbreviatus is similar to that of S. rufomaculatus. Both species are placed in subgroup 1, but S. abbreviatus differs by the hinge sclerites with apex broader and slightly curved, and S. rufomaculatus with hinge sclerites broader at the base and strongly curved.

Sennius bondari (Pic, 1929) (Figs 9–12)

Bruchus bondari Pic, 1929: 28. (original description, distribution); Bondar 1937: 40 (redescription, host, distribution); Zacher 1952: 461 (host). Acanthoscelides bondari: Blackwelder 1946: 759 (catalog, distribution); Costa Lima 1955: 245 (host); Silva et al. 1968: 372 (host, distribution). Sennius bondari: Johnson & Kingsolver 1973: 72 (citation); Johnson 1984: 62 (host, distribution); Udayagiri & Wadhi 1989: 100 (catalog, distribution, host); Kingsolver & Silva 1991: 412 (citation); Macêdo et al. 1992: 331, 334 (host, distribution); Pimentel 1997 (biology, host); Ribeiro-Costa & Reynaud 1998: 245 (catalog, distribution, host); Ribeiro- Costa 1998: 66 (biology); Silva et al. 2003: 269 (citation); Linzmeier et. al. 2004: 351 (biology); Caron et al. 2004: 4 (egg description); Koller & Nunes 2006: 6 (host); Pikart et. al. 2011: 378, 379 (distribution, host); Viana & Ribeiro-Costa 2013 (redescription, distribution, type, host, figures).

Redescription. Dimension. BL: 1.96–2.60 mm; BW: 1.28–1.64 mm. Body black. Elytra with dense white setae on 1st strial interval, in small patch at base of 3rd and 5th interstices, forming rounded patch occupying 2nd strial interval at its narrowest section until 4th strial interval on their broadest part on median region; small, shorter and horizontal strip on submedian region, which occupies part of 5th to 9th interstices, sometimes dense patch in 7th and/or 9th interstices (Fig. 9). Pygidium with intermixed sparse white and golden setae; patch of dense white setae on median-basal region and moderately dense on latero-anterior corners (Fig. 10). Median lobe of male genitalia with long, moderately curved and broad hinge sclerites; apical region without spicules; subapical region with long and short spicules denser in two irregular groups; submedian region with groups of spicules at apex of latero-basal lobes; latero-basal lobes of internal sac with spicules denser at apex; basal region with denticles denser near gonopore (Fig. 11). Tegmen with lateral lobes separated by emargination about 0.7 times their length (Fig. 12). Material examined and detailed diagnosis. See Viana & Ribeiro-Costa (2013). Distribution. COL (Valle del Cauca), VEN (Carabobo), BOL (Santa Cruz), BRA (Rio Grande do Norte, Piau, Bahia, Distrito Federal, Espírito Santo, Rio de Janeiro, Minas Gerais, São Paulo, Mato Grosso, Mato Grosso do Sul, Paran). Host plant. BIGNONIACEAE: Memora peregrina (Miers) Sandwith. FABACEAE: Caesalpinioideae: Senna pistaciifolia (Kunth) Irwin & Barneby, S. pendula (Willd.) Irwin & Barneby, S. occidentalis, S. bicapsularis (Linn.)

REVIEW OF THE SENNIUS ABBREVIATUS SPECIES GROUP Zootaxa 3736 (5) © 2013 Magnolia Press · 509 Roxb, S. macranthera (Collad.) Irwin & Barneby, S. bauhinioides (Gray) Irwin & Barneby, S. multijuga (Rich.) Irwin & Barneby, S. surattensis (Burm.f.) Irwin & Barneby, S. splendida (Vogel) Irwin & Barneby, S. alata (Linn.) Roxb., S. neglecta var. oligophylla (Benth.) H.S.Irwin & Barneby, S. neglecta var. neglecta (Vogel) H.S.Irwin & Barneby, S. appendiculata (Vogel) Wiersema (syn for S. australis), Senna spectabilis (DC) Irwin & Barneby. Diagnosis. Sennius bondari (subgroup 3) is externally similar to S. leucostauros and S. lojaensis by sharing horizontal strip of white setae on elytra, but the male genitalia pattern place this species in subgroup 3, along with S. leucostauros. Sennius bondari differs from S. leucostauros and S. lojaensis by the shape of the horizontal strip on elytra, the white setae pattern in pygidium and characters in male genitália.

FIGURES 9–12. Sennius bondari. 9, dorsal view; 10, pygidium; 11, 12 male genitalia: 11, median lobe with hinge sclerites, others sclerites magnified of internal sac; 12, tegmen.

Sennius durangensis Johnson & Kingsolver, 1973 (Figs 13–20)

Sennius durangensis Johnson & Kingsolver, 1973: 47 (description, key, figures, type designation, taxonomy, distribution, host); Johnson 1980: 30 (host); Johnson & Kingsolver 1981: 419 (catalog, distribution); Udayagiri & Wadhi 1989:102 (catalog); Luna-Cozar et al. 2002: 26 (list); Romero-Nápoles & Johnson 2004: 627 (list).

Redescription. Dimension. BL: 1.4–1.9 mm; BW: 0.9–1.3 mm. Integument color. Head black with labrum brown to black (Fig. 14); antennomeres 1–4 red-orange to brown, 5 red-orange to black, 6–10 black, 11 brown to black (Figs 14, 15). Black elytra, each with red-orange macula generally vertically elongated extending from 3rd strial interval to lateral margin, occupying most of elytra, or when macula smaller, not reaching lateral margin and occupying only median region of each elytron (Fig. 13). Thorax, forecoxa and hind leg black; basal region of fore- and mid femur dark brown to black, remainder brown to pale brown, mid leg generally darker than forelegs. Tibiae and apex of femur sometimes lighter (Fig. 14). Pubescence. Head with white sparse setae, moderately dense on post-ocular lobe and on posterior area near post-ocular lobe; labrum with sparse golden setae (Fig. 15). Pronotal setae white or gold generally sparse to moderately dense and evenly distributed. Elytra with sparse, evenly distributed, white and golden or just white setae (Fig. 13). Pygidium with moderately dense white setae, sometimes with denser vertical and medial strip at base (Fig. 16). Ventral surface with sparse to moderately dense white setae (Fig. 14). Head with frons convex, frontal carina slightly evident and ocular sinus slightly deep, less than half eye length (Fig. 15). Antennomeres 1 and 3 filiform, 2 and 4 moniliform, 5 and 6 longer than wide, 7–10 wider than long, 11 globular but pointed apically. Disc of pronotum strongly sulcate at basal lobe. Elytra without denticle at strial base. Hind femur on ventral margin with slightly prominent tooth (0.02–0.04 mm), not microserrate (Fig. 17). Hind tibia without lateroventral carina (Fig. 18). Male genitalia. Median lobe weakly sclerotized, about 7.9 times longer than wide medially, apex slightly expanded; ventral valve elongated with truncate apex and lateral margins sinuous. Internal sac with hinge sclerites

510 · Zootaxa 3736 (5) © 2013 Magnolia Press VIANA & RIBEIRO-COSTA. long, slightly curved and thin; apical region with group of spicules near ventral valve, subapical region with short and slightly dense group of spicules; submedian region with group of long spicules and rows of short spicules at base; latero-basal lobes of internal sac with few short spicules; basal region with denticules not denser near gonopore (Fig. 19). Tegmen with lateral lobes separated by emargination about 0.9 times their length (Fig. 20).

FIGURES 13–20. Sennius durangensis. 13, dorsal view; 14, lateral view; 15, head, frontal view; 16, pygidium; 17, part of hind leg, internal view; 18, hind tibia, external view; 19,20 male genitalia: 19, median lobe with hinge sclerites, others sclerites magnified and latero-basal lobes of internal sac; 20, tegmen.

Material examined. Types (93): Sennius durangensis Johnson & Kingsolver, 1973. Holotype and Allotype deposited in USNM. Holotype, labels: “48 mi. N. Rodeo \ Dgo., Mex. \ VI-4-68” (White) “C. D. Johnson \ Collector” (White) “USNM \ Type Nº \ 71394”(Red) “Holotype \ Sennius durangensis \ Johnson & Kingsolver” (Blue). Allotype, labels: “MEX.: Dgo., 8 mi. NE \ Guadalupe Victoria \ VIII-10-64”(White) “C. D. Johnson \ Collector” (White) “USNM \ Type Nº \ 71394”(Red) “Allotype \ Sennius durangensis \ Johnson & Kingsolver” (Blue). Paratypes studied, deposited in TAMU (CD Johnson collection) (76 specimens), FSCA (2 specimens), USNM (10 specimens) and CNCI (3 specimens), labels: MEX: Coahuila: 1, “MEX.: Coah., 31 mi. \ S Monclava \ VII-11-64”(White) “C. D. Johnson \ Collector”(White) “Paratype”(Blue) “Sennius \ durangensis J & K \ det. C. D. Jonhson \ 1973”(White) “ex. C. D. Johnson Collection \ August 1999, Texas A&M \ University Collection”(White) (TAMU); Sinaloa: 1, “Mazatlan, Sinaloa, \ México VIII-14-65 \ H. Burke & J. Meyer”(White) “A & M”(Yellow) “Paratype”(Blue) “Sennius \ durangensis J & K \ det. C. D. Jonhson \ 1973”(White) “ex. C. D. Johnson Collection \ August 1999, Texas A&M \ University Insect Collection”(White) (TAMU); Durango: 1, “48 mi. N. Rodeo \ Dgo., Mex. \ VI-4-68” (White) “C. D. Johnson \ Collector” (White) “Paratype”(Blue) “Sennius \ durangensis J & K \ det. C. D. Jonhson \ 1973”(White) “ex. C. D. Johnson Collection \ August 1999, Texas A&M \ University Insect Collection”(White) (TAMU); 2, “48 mi. N. Rodeo \ Dgo., Mex. \ VI-4-68” (White) “C. D. Johnson \ Collector” (White) “Paratype”(Blue) “Sennius \ durangensis J & K \ det. C. D. Jonhson \ 1973”(White) (FSCA); 1, “MEX.: Dgo., 6 mi. E \ Vicente Guerrero \ VII-9-64”(White) “Paratype”(Blue) “Sennius \ durangensis J & K \ det. C. D. Jonhson \ 1973”(White) “ex. C. D. Johnson Collection \ August 1999, Texas A&M \ University Insect Collection”(White) (TAMU); 1, “MEX.: Dgo., 6 mi. E \ Vicente Guerrero \ VII-9-64”(White) “C. D. Johnson \ Collector”(White) “Paratype”(Blue) “Sennius \ durangensis J & K \ det. C. D. Jonhson \ 1973”(White)

REVIEW OF THE SENNIUS ABBREVIATUS SPECIES GROUP Zootaxa 3736 (5) © 2013 Magnolia Press · 511 “ex. C. D. Johnson Collection \ August 1999, Texas A&M \ University Insect Collection”(White) (TAMU); 8, “9 mi. NE Guadalupe \ Victoria, Dgo, Mex. \ VIII-12-1965. H. R. \ Burke & J. R. Meyer” (White) “A & M”(Yellow) “Paratype”(Blue) “Sennius \ durangensis J & K \ det. C. D. Jonhson \ 1973”(White) “ex. C. D. Johnson Collection \ August 1999, Texas A & M \ University Insect Collection”(White) (TAMU); 2, “MEX.: Dgo., 8 mi. NE \ Guadalupe Victoria \ VII-10-64”(White) “C. D. Johnson \ Collector”(White) “Paratype”(Blue) “Sennius \ durangensis J & K \ det. C. D. Jonhson \ 1973”(White) “ex. C. D. Johnson Collection \ August 1999, Texas A&M \ University Insect Collection”(White) (TAMU); 53, “MEX.: Dgo., 8 mi. NE \ Guadalupe Victoria \ VII-10- 64”(White) “Swept Cassia \ crotalarioides”(White) “Collr: C. D. \ Johnson”(White) “Paratype”(Blue) “Sennius \ durangensis J & K \ det. C. D. Jonhson \ 1973”(White) “ex. C. D. Johnson Collection \ August 1999, Texas A&M \ University Insect Collection”(White) (TAMU); 8, “MEX.: Dgo., 8 mi. NE \ Guadalupe Victoria \ VII-10- 64”(White) “Swept Cassia \ crotalarioides”(White) “Collr: C. D. \ Johnson”(White) “Paratype \ Sennius \ durangensis \ Johns. & Kings.” (Blue) (USNM); 1, “MEX.: Dgo., 8 mi. NE \ Guadalupe Victoria \ VII-10- 64”(White) “Swept Cassia \ crotalarioides”(White) “Collr: C. D. \ Johnson”(White) “Paratype”(Blue) “Sennius \ durangensis J & K \ det. C. D. Jonhson \ 1973”(White) “ex. C. D. Johnson Collection \ August 1999, Texas A&M \ University Insect Collection”(White) (USNM); 3, “MEX.: Dgo., 8 mi. NE \ Guadalupe Victoria \ VII-10- 64”(White) “C. D. Johnson \ Collector”(White) “Paratype”(Blue) “Sennius \ durangensis J & K \ det. C. D. Jonhson \ 1973”(White) “PARATYPE \ CNC Nº13138”(Yellow) (CNCI); 7, “5 mi. W Guadalupe \ Victoria, Dgo, Mex. \ VII-29-66 \ P. M. & P. K.Wagner” (White) “A & M”(Yellow) “Paratype”(Blue) “Sennius \ durangensis J & K \ det. C. D. Jonhson \ 1973”(White) “ex. C. D. Johnson Collection \ August 1999, Texas A&M \ University Insect Collection”(White) (TAMU); Zacateca: 1, “MEX. Zacat. \ 4 mi. N. of Fresnillo \ 20-VIII-1969” (White) “P. H. Arnaud, Jr. \ E. S. Rose \ D. C. Rentz”(White) “CAS”(White) “Paratype”(Blue) “Sennius \ durangensis J & K \ det. C. D. Jonhson \ 1973”(White) “ex. C. D. Johnson Collection \ August 1999, Texas A&M \ University Insect Collection”(White) (TAMU); Hidalgo: 1, “7 mi. N. E. Zimapan \ Hidalgo, Mex. \ Aug. 15, 1958 \ H. F. Howden”(White) “Paratype \ Sennius \ durangensis \ Johns. & Kings.” (Blue) (USNM). Note: The paratypes studied are part of the type material designated by Jonhson & Kingsolver (1973). Addition to museums above, others paratypes were deposited in CAS, FMNH and MCZ. Non-type (19): MEX: Sonora: No locality: [19]68, C. D. Johnson, 1 (TAMU). Coahuila: 18mi. S. E. Saltillo: 21/VI/[19]71 C. D. Johnson, 2 (CNCI). 28 mi. S. E. Saltillo: 10/VII/[19]63, R. H. Arnett, 7 (TAMU). No locality: 18/VII/[19]63, R. H. Arnett, 5 (TAMU). Durango: 9 mi. NW La Zarca: 1/VII/1971, O’Brien & Marshall, 1 (TAMU); Km. 739 Hwy. to Durango: 15/VII/[19]69, Ward. Temorio & Bennett, 1 (TAMU). San Luis Potosí: 65 mi. NW San Luis Potosi, 30/VI/1971, Ward & Brothers, 1 (TAMU). No locality: no further data, 1 (TAMU). Distribution. MEX (Sonora, Coahuila, Durango, Zacatecas, Hidalgo, San Luis Potosí, Nuevo León, Querétaro, Sinaloa). Host plant. FABACEAE: Caesalpinioideae: Senna covesii (A.Gray) Irwin & Barneby. Diagnosis. Sennius durangensis (Subgroup 2) resembles S. medialis (Subgroup 2), S. abbreviatus (Subgroup 1) and S. rufomaculatus (Subgroup 1) by the extremely similar coloration of the dorsum. Sennius durangensis differs from the others only by having the elytra with sparse white or white and golden pubescence. In S. medialis the pubescence is moderately dense, not forming patches, which are present in S. rufomaculatus at the base of the 3rd and 5th interstices. And it differs by having the maculae more elongated, occupying most of each elytron, which in S. abbreviatus are smaller and occupy only the basal region. Comparing the genitalias, S. durangensis is more similar to S. medialis by having the median lobe slightly sclerotized, characteristic of subgroup 2, and differ from each other by the hinge sclerites, wider and bifid in S. durangensis, and thin with narrower base in S. medialis. Other comments in the diagnosis of S. abbreviatus.

Sennius flinte sp nov. (Figs 21–28)

Description. Dimension. BL: 1.8–2.3 mm; BW: 1.2–1.5 mm. Integument color. Body reddish to dark brown (Figs 21–24), except antennomeres 1–4 red-orange, 5–11 dark brown (Figs 23, 24), fore and mid leg red-orange and hind leg pale to dark brown (Fig. 22). Pubescence. Head with small dense white patch of setae posterior to post-ocular lobe and in ocular sinus,

512 · Zootaxa 3736 (5) © 2013 Magnolia Press VIANA & RIBEIRO-COSTA. remainder of head with moderately dense white setae (Figs 22, 23). Pronotal white setae sparse, except dense patch on lateral third. Elytra with white dense patch on submedian region of 4th to 10th interstices and base of 5th and 6th interstices; generally moderately dense white setae on 1st and 3rd interstices, except apically, apex from 4th to 6th interstices with sparser white setae, remainder with sparse black setae (Fig. 21). Ventral surface with white setae denser at base of mesepimerum, posterior region of metepisternum and on distal region of hind coxa (Fig. 22). Pygidium with sparse golden and white setae, white setae denser at anterolateral corners and on mediobasal region, forming narrow midline until close to apex (Fig. 24).

FIGURES 21–28. Sennius flinte sp. nov. 21, dorsal view; 22, lateral view; 23, head, frontal view; 24, pygidium; 25, part of hind leg, internal view; 26, hind tibia, external view; 27, 28 male genitalia: 27, median lobe with hinge sclerites, others sclerites magnified and latero-basal lobes of internal sac; 28, tegmen.

Head with frons slightly convex, frontal carina slightly evident and ocular sinus slightly deep, less than half length of eye (Fig. 23). Antennomeres 1 and 2 moniliform, 3 and 4 filiform, 5–10 wider than long, 11 globular but pointed apically. Disc of pronotum strongly sulcate at basal lobe. Elytra without denticle at strial base. Hind femur on ventral margin with very prominent tooth (0.03–0.07 mm), microserrate (Fig. 25); hind tibia without lateroventral carina (Fig. 26). Male genitalia. Median lobe weakly sclerotized, about 5.1 times longer than wide medially, apex slightly expanded. Ventral valve rounded with truncate apex and lateral margins convex. Internal sac with hinge sclerites short, straight with base broader; apical region without spicules; subapical region continuing with group of short spicules of apical region; submedian region with two denser groups of long spicules; latero-basal lobes of internal sac with dense and short spicules; basal region with denticles denser near gonopore (Fig. 27). Tegmen with lateral lobes separated by emargination, about 0.7 times their length (Fig. 28). Material examined. Types (38): Holotype, allotype deposited in DZUP. Holotype labels: “Capão Bonito-SP/ 04- VI-92/ W. R. Silva/ M. M. A. Oliveira col. ”(Light brown) “HOLOTYPE \ Sennius flinte \ Viana & Ribeiro- Costa”(Red). Allotype labels: same of holotype except last label: “ALLOTYPE \ Sennius flinte \ Viana & Ribeiro- Costa”(Red). 36 paratypes deposited in MZSP, MNRJ, TAMU, USNM, FSCA, CEAM and CNCI. Labels: BRA: São Paulo: 22, “Capão Bonito-SP/ 04-VI-92/ W. R. Silva/ M. M. A. Oliveira col.”(Light brown) “PARATYPE \ Sennius flinte \ Viana & Ribeiro-Costa”(Yellow) (13, DZUP; 2, MZSP; 2, MNRJ; 1, TAMU; 1, USNM; 1, FSCA; 1,

REVIEW OF THE SENNIUS ABBREVIATUS SPECIES GROUP Zootaxa 3736 (5) © 2013 Magnolia Press · 513 CEAM; 1, CNCI). Minas Gerais: 9, “Brasil, Minas Gerais, Lavras \ 920m, 21º 13’39”S \ 44º59’00” O, 20/VIII/ 2009 \ L. D. B. Faria col.”(White) “Pl. hosp. \ Senna multijuga \ (Fabaceae)”(White) and same paratype label (1, DZUP; 1, MNRJ; 1, TAMU; 2, USNM; 2, FSCA; 1, CEAM; 1, CNCI). 5,“Brasil, Minas Gerais, Lavras \ 920m, 21º 13’39”S \ 44º59’00” O, 07/VIII/2009 \ L. D. B. Faria col.”(White) “Pl. hosp. \ Senna multijuga \ (Fabaceae)”(White) and same paratype label (1, DZUP; 1, MZSP; 1, TAMU; 1, CEAM; 1, CNCI). Distribution. BRA (São Paulo). Host plant. FABACEAE: Caesalpinioideae: Senna multijuga. Diagnosis. Sennius flinte sp. nov. (subgroup 2) differs from all species of the S. abbreviatus group by the color of the integument and the pubescenceon the dorsum. The male genitalia of this species is most similar to that of S. durangensis (subgroup 2), by having hinge sclerites more elongated and almost straight. Both species can be separated mainly by the color of the elytra, which is entirely brown in Sennius flinte sp. nov. and black with pale macula in S. durangensis. The male genitalia of both species also differ in the groups of spicules on the subapical region and on the latero-basal lobes, which are denser in Sennius flinte sp. nov. than in S. durangensis. Etymology. The specific name “flinte” is in honor of Dra. Vivian Flinte, for her great professional and personal contribution in instructing J. H. Viana. This is a noun in apposition, gender feminine.

Sennius lawrencei Johnson, 1977 (Figs 29–37)

Sennius lawrencei Johnson, 1977: 121 (description, figures, type designation, taxonomy, distribution, host); Johnson & Kingsolver 1981: 419 (catalog, distribution); Udayagiri & Wadhi 1989:104 (catalog).

Redescription. Dimension. BL: 2.0–2.6 mm; BW: 1.2–1.8 mm. Integument color. Head generally black, sometimes with mouthparts red-orange and/or small red-orange post- ocular macula (Fig. 31); antennomeres 1–4 red–orange, 5 red-orange to reddish brown, 6–11 reddish brown, ventral surface of segments red-orange (Figs 30, 31). Elytra completely red-orange, red-orange with narrow external border of dark brown to black, or black with red-orange rounded macula on submedian region, which extends from 3rd to 9th interstices, occupying more than half of each elytron (Fig. 29). Pronotum and prosternum dark brown to black, remaining thorax red-orange to black; fore and mid leg red-orange, except for brown to dark brown tarsus; hind leg entirely black to entirely red-orange (Fig. 30). Pubescence. Head with small dense patch of white setae posterior to post-ocular lobe, remainder with sparse white setae; labrum with scattered golden setae, denser apically (Fig. 31). Pronotum with white, golden and brown setae (Fig. 29). Dark specimens: Pronotum with gold and brown setae, dense white patch at basal lobe and part of lateral third from 3rd strial interval to humerus. Elytra with golden and brown setae, except for vertical strip on 1st strial interval and part of 2nd strial interval with moderately dense white setae (Fig. 29). Ventral surface with moderately dense white setae, except setae denser on base of mesepimerum, posterior margin of metepisternum and distal region of hind coxa (Fig. 30). Pygidium with even and moderately dense white setae, eventually denser on median line, extending from base to apex (Fig. 32). Head with frons convex, frontal carina present and ocular sinus deep, about half length of eye (Fig. 31). Antennomeres 1 and 2 moniliform, 3 and 4 filiform, 5–10 wider than long, 11 globular but pointed apically. Disc of pronotum strongly sulcate at basal lobe. Elytra with denticles at base of 2nd and 4th strial (Fig. 33). Hind femur on ventral margin with very prominent tooth (0.07–0.12 mm), microserrate (Fig. 34); hind tibia with lateroventral carina extending half its length (Fig. 35). Male genitalia. Median lobe strongly sclerotized, about 4 times longer than wide medially, apex slightly expanded; ventral valve triangular with truncate apex and lateral margins concave. Internal sac with hinge sclerites long, strongly curved and thin; apical region without spicules; subapical region with short and dense group of spicules; submedian region with two elongated and lateral groups of long spicules; latero-basal lobes of internal sac with dense and long spicules; basal region with denticles and spicules not denser near gonopore (Fig. 36). Tegmen with lateral lobes separated by emargination about 0.8 times their length (Fig. 37). Material examined. Types (4): Sennius lawrencei Johnson, 1977. Holotype and Allotype not examined, deposited in CNCI, with the labels: “Panama. Canal Zone: Frijoles, 24-4-64, reared seeds Cassia reticulata, L. J.

514 · Zootaxa 3736 (5) © 2013 Magnolia Press VIANA & RIBEIRO-COSTA. Bottimer collection #119g. CNC # 15059”. Four paratypes studied, deposited in USNM with labels: PAN: Colon: 2, “Gamboa \ PANAMA C. Z. \ III-4-1964 \ L. J. Bottimer” (White) “Reared seeds \ Cassia reticulata” (White) “Emerged by \ III-21-64”(White) “L. J. Bottimer \ Collection \ Nº 122J”(White) “PARATYPE”(Blue) “Sennius \ lawrencei Johnson \ det C. D. Johnson”(White) (USNM); 2, “Gamboa \ PANAMA C. Z. \ I-24-1964 \ L. J. Bottimer” (White) “Reared seeds \ Cassia reticulata”(White) “Emerged by \ II-7-64”(White) “L. J. Bottimer \ Collection \ Nº 119G”(White) “PARATYPE”(Blue) “Sennius \ lawrencei Johnson \ det C. D. Johnson”(White) (USNM). Note: The information on holotype and allotype labels are from Johnson (1977) and the paratypes studied are part of the type material designated in the same paper. In addition to the museums mentioned above, others paratypes were deposited in CNCI, CAS and MCZ. Non-type (7): PAN: Colon: Zona del Canal: 3, 3/04/1985, M. Baca, Cassia reticulata (TAMU). BRA: Amazonas: Manaus: 4, 09/VII/2002, A. Menezes Jr., Senna sp. (DZUP).

FIGURES 29–37. Sennius lawrencei. 29, dorsal view; 30, lateral view; 31, head, frontal view; 32, pygidium; 33, base of elytra strial; 34, part of hind leg, internal view; 35, hind tibia, external view; 36, 37 male genitalia: 36, median lobe with hinge sclerites, others sclerites magnified and latero-basal lobes of internal sac; 37, tegmen.

Distribution. PAN (Colon). New record—BRA (Amazonas). Host Plant. FABACEAE: Caesalpinioideae: Senna reticulata (Willd.) Irwin & Barneby. Diagnosis. The specimens of S. lawrencei with black elytra each with red-orange rounded macula superficially resembles S. rufomaculatus (subgroup 1). The male genitalia of S. lawrencei is more similar to S. rufomaculatus and S. nappi (both subgroup 1) however S. lawrencei differs externally from S. nappi by the lack of a horizontal stripe of white setae on the median basal region and from S. rufomaculatus by the lack of a white setal patch at the base of the interstices. The male genitalia in these three species are similar, but the internal sac of S. lawrencei lacks spicules in the apical region (present in S. rufomaculatus and S. nappi), the subapical region has one short group of spicules (two long group of spicules in S. rufomaculatus and three in S. nappi) and the submedian region has two elongated, lateral groups of long spicules (S. rufomaculatus with four, grouped in pairs, and S. nappi with three, two lateral and one medially).

REVIEW OF THE SENNIUS ABBREVIATUS SPECIES GROUP Zootaxa 3736 (5) © 2013 Magnolia Press · 515 Sennius lebasi (Fåhraeus, 1839) (Figs 38–46)

Bruchus lebasi Fåhraeus, 1839: 25 (description, distribution); Pic 1913: 30 (catalog). Acanthoscelides lebasi: Blackwelder 1946: 760 (distribution). Sennius lebasi: Kingsolver 1979: 342; Johnson & Kingsolver 1981: 419 (catalog, distribution); Udayagiri & Wadhi 1989:104 (catalog); Luna-Cozar et al. 2002: 26 (list); Turnbow et al. 2003: 276 (list); Kingsolver 2004: 200 (key, diagnosis, figures, host, distribution); Romero-Nápoles & Johnson 2004: 627 (list); Lorea-Barocio et al. 2006: 519 (distribution, host). Bruchus rufescens Motschulsky, 1874: 222 (description, distribution); Kingsolver 1979: 342 (synonym). Acanthoscelides rufescens: Blackwelder 1946: 761 (catalog). Sennius rufescens: Johnson 1977: 118 (host). Bruchus celatus Sharp, 1885: 499 (description, distribution); Pic 1913: 20 (catalog); Johnson 1977: 118 (synonym). Acanthoscelides celatus: Blackwelder 1946: 759 (catalog). Sennius celatus: Bottimer 1961: 294 (distribution, host); 1968: 1026, 1039 (distribution); Moldenke 1971: 108 (host); Johnson & Kingsolver 1973: 31 (description, key, figures, type designation, taxonomy, distribution, host).

Redescription. Dimension. BL: 1.5–2.8 mm; BW: 0.9–1.9 mm. Integument color. Head black with red-orange post-ocular macula, labrum red-orange to black (Fig. 40); antenna generally red-orange, sometimes antennomeres 6–11 brown (Figs 39, 40). Pronotum red-orange to black, intermediate forms in pale tones with macules on sides of pronotum (Fig. 39); elytra brown to black, in general black each with red-orange horizontal macula on submedian region extending from 1st or 4th interstices to outer margin, and another red-orange irregular macula on apical region (Fig. 38). Pygidium red-orange to black (Fig. 41). Ventral region of thorax and 1st abdominal ventrite black, remaining orange to red rarely entirely black, lateral and apical areas usually of lighter color (Fig. 39). Legs generally red-orange, sometimes base of hind femur black; posterior tarsus brown to black (Fig. 39). Pubescence. Head with white setae on post-ocular lobe and small dense patch posterior to post-ocular lobe, remainder of head with moderately dense white setae (Figs 39, 40). Pronotum generally with irregular white or golden and white patch of setae at base, mid and laterally. Elytra with sparse white setae or golden and white setae; dense white setae at base of 3rd and 5th interstices, on anterior region of 1st strial interval; and horizontal stripe from 2nd strial interval to outer margin of elytra at submedian region covering macula (Fig. 38), also present in specimens with entirely black elytra. Pygidium generally with black horizontal strip medially, remainder moderately dense white setae (Fig. 41). Ventral surface with moderately dense white or white and golden setae, denser at base of mesepimerum, posterior basal margin of metepisternum and distal region of hind coxa (Fig. 39). Head with frons convex, frontal carina slightly evident and ocular sinus deep, more than half length of eye (Fig. 40). Antennomeres 1 and 3 filiform, 2 and 4 moniliform, 5 and 6 as long as wide, 7–10 slightly wider than long, 11 globular but pointed apically. Disk of pronotum slightly sulcate at basal lobe (Fig. 39). Elytra with denticles at base of 3rd and 4th strial (Fig. 42). Hind femur on ventral margin with slightly prominent tooth (0.02– 0.05 mm), microserrate (Fig. 43); hind tibia with lateroventral carina extending half its length (Fig. 44). Male genitalia. Median lobe strongly sclerotized, about 4.7 times longer than wide medially, apex strongly expanded; ventral valve rounded, with round apex and lateral margins convex. Internal sac with hinge sclerites short, strongly curved and thin; apical region with group of spicules near ventral valve and long and dense group of long spicules continuing on subapical region; subapical region continuing with group of long spicules of apical region; submedian region with small denticles near group of long spicules of subapical and apical regions; latero- basal lobes of internal sac with few long spicules; basal region with dense and triangular group of long spicules and denticles not denser near gonopore (Fig. 45). Tegmen with lateral lobes separated by emargination about 0.8 times their length (Fig. 46). Material examined. Type (2): Bruchus lebasi Fåhraeus, 1839. Lectotype (here designated) deposited in NHRS, with labels: “Paratypus” (Red) “B. lebasii. Dej [Dejean] \ Carthagena Colum. [Columbia] \ [unreadable] Dej. [Dejean]”(White) “Lectotype \ Sennius lebasi (Fåhraeus, 1839) \ design. Viana & Ribeiro-Costa 2012”(Red). Paralectotype deposited in NHRS, with labels: “Typus” (Red) “B. lebasii. Dej [Dejean] \ Carthagena Colum. [Columbia] \ [unreadable] Dej. [Dejean]”(White) “Paralectotype \ Sennius lebasi (Fåhraeus, 1839) \ design. Viana & Ribeiro-Costa 2012”(Red). Note: We received, from the NHRS, two specimens with the same location and collector labels quoted in the original description and containing the printed labels "type" and "paratype", one on each specimen. In the original description, however, Fåhraeus mentioned two specimens. He did not mention

516 · Zootaxa 3736 (5) © 2013 Magnolia Press VIANA & RIBEIRO-COSTA. which one was the holotype. There was no mention to the lectotype or paralectotype in subsequent publications. Furthermore, the printed labels with the information "type" and "paratype" are posterior to the species’ description in 1939. Therefore, we designate here the best preserved specimen as the lectotype.

FIGURES 38–46. Sennius lebasi. 38, dorsal view; 39, lateral view; 40, head, frontal view; 41, pygidium; 42, base of elytra strial; 43, part of hind leg, internal view; 44, hind tibia, external view; 45, 46 male genitalia: 45, median lobe with hinge sclerites, others sclerites magnified and latero-basal lobes of internal sac; 46, tegmen.

Non-type (177): USA: Texas: Donna: 24, V/1936, J. W. Monk (CNCI). MEX: Sonora: 8 mi NW Alamos: 10, 23/XII/[19]76, C. D. Johnson (TAMU). Navajoa: 1, Rio Mayo, 16/VIII/1964, H. R. Burke & J. Apperson (TAMU). Sinaloa: Rosario: 1, 28/VI/[19]56, R. & K. Dreisbach (CNCI). Wollamo: 1, 27/VI/[19]56, R. & K. Dreisbach (CNCI). San Luis Potosí: 10 mi. E. Ciudad del Maiz: 1, 23/VIII/[19]64, H. R. Burke & \ J. Apperson (TAMU). Xilitla: 4, 20 Mi. W., 22-VII-1954, J. G. Chillcott (CNCI). Nayarit: Rosamorda: 7, 12 mi. N., 12/VII/[19]68, C. D. Johnson (TAMU). Rosamorada: 7, 1 mi. S., 12/VII/[19]68, C. D. Johnson (TAMU). Veracruz: Paplanta: 1, 3 mi. E., 7/I/[19]65, Burke, Meyer & Schaffner (TAMU). Yucatán: Progresso: 7, 31/XII/[19]78, C. D. Johnson (TAMU). Michoacán: Playa Azul: 8, 6 mi NE, 7/III/[19]79, C. D. Johnson (TAMU). Colima: Cuyution: 1, 3 mi E., 7/III/[19]73, C. D. Johnson (TAMU). Manzanillo: 12, 1 mi W., 7/III/[19]73, C. D. Johnson (TAMU); 16, 16 mi E., 2/I/[19]73, C. D. Johnson (TAMU). Guerrero: Petatlan: 7, 17º33.75’N 101º20.27’W, 28/VIII/[19]92, K. R. Pullen (TAMU). Oaxaca: Pinotepa National: 12, 36km N., 7/I/[19]80, C. D. Johnson (10, TAMU; 2, FSCA). Salina Cruz: 1, 17/VII/1947, B. Malkin (CNCI). Temascal: 10, 5 mi. E., 24/VI/1964, D. H. Janzen (USNM). Chiapas: Comitan: 1, 31 mi. SE., 18–19/VI/[19]65, H. R. Burke, J. H. Meyer & J. C. Schaffner (TAMU). HON: Atlántida: LaCeiba: 1, II/1949, E. C. Becker (CNCI). Francisco Morazan: Zamorano: 1, 4.2 km. S, 15/X/1993, R. Turnbow (FSCA). NCA: Granada: no locality: 1, 25/VI/1963, L. J. Bottimer (CNCI); 1, 28/VI/1963, same collector (CNCI); 2, 29/ VI/1963, same collector (CNCI); 1, 30/VI/1963, same collector (CNCI); 2, 1/VII/1963, same collector (CNCI). CRC: San José: San Jose: 1, 4/VII/1963, same collector (CNCI). Puntarenas: Caraca: 2, Biol Reserve, 10/IV/ 2001, D. Riley (FSCA). PAN: Chiriqui: Puerto Armuelles: 1, 15/I/1983, Linda Stephens & Bryce Edmonson (FSCA). Colon: Gatun: 13, 2/III/1964, L. J. Bottimer (CNCI); 15, 3/III/1964, same collector (CNCI). Canal Zone: 1, III/[19]20, H. L. Lyons (CNCI). COL: Valey: 1, no further data (NHRS). No locality: 1, no further data (NHRS). BRA: Mato Grosso: 1, Cárceres: 14/V/1952, M. Alvarenga (MNRJ).

REVIEW OF THE SENNIUS ABBREVIATUS SPECIES GROUP Zootaxa 3736 (5) © 2013 Magnolia Press · 517 Distribution. USA (Texas), MEX (Sonora, Sinaloa, San Luis Potosí, Nayarit, Veracruz, Yucatán, Colima, Oaxaca, Chiapas, Campeche, Guanajuato, Guerrero, Jalisco, Michoacán, Morelos, Puebla, Querétaro, Tabasco), BIZ, ESA, HON (Atlántida, Francisco Morazan, El Paraíso), NCA (Granada), CRC (Guanacaste, San José, Puntarenas), PAN (Chiriqui, Colon, Canal Zone), TRI, VEN (Carabobo), COL (Cartagena), BRA (Mato Grosso), CHI. Host Plant. FABACEAE: Caesalpinioideae: Senna hirsuta (Linn.) Irwin & Barneby, S. occidentalis, S. reticulata, S. cobanensis (Britton & Rose) Irwin & Barneby, S. pendula, S. obtusifolia, S. sophera (Linn.) Roxb., S. uniflora (Mill.) Irwin & Barneby, S. bicapsularis, S. galegifolia (Linn.) Barneby & Lourteig, S. hayesiana (Britton & Rose) Irwin & Barneby, S. septemtrionalis (Viv.) Irwin & Barneby, S. polyphylla (Jacq.) Irwin & Barneby, S. tora (Linn.) Roxb, Cassia laevigata Willd., C. leptocarpa Benth. Mimosoideae: Acacia farnesiana (Linn.) Willd. : Sesbasnia herbacea (Mill.) McVaugh. Diagnosis. Except for specimens with black elytra, this species is the only with a horizontal and red-orange macula on the submedian region. This macula extends to the outer margin of the elytra and, in general, occurs with another apical, irregular, red-orange macula, both in each elytron. Comparing the male genitalia, S. lebasi is more similar to species of subgroup 3, S. leucostauros, S. trinotaticollis and S. bondari. It differs mainly by the strongly curved and shorter hinge sclerites, in addition to the mass of spicules on the subapical region of the internal sac, which is more elongated and expanded, with the largest part being in the apical and subapical region.

Sennius leucostauros Johnson & Kingsolver, 1973 (Figs 47–54)

Sennius leucostauros Johnson & Kingsolver, 1973: 75 (description, key, figures, type designation, taxonomy, distribution, host); Johnson 1977: 128,130 (host, distribution); Johnson & Kingsolver 1981: 419 (catalog, distribution); Udayagiri & Wadhi 1989: 105 (catalog); Kingsolver 2004: 200 (key, diagnosis, figures, host, distribution); Romero-Nápoles & Johnson 2004: 627 (list); Lorea-Barocio et al. 2006: 519 (distribution, host).

Redescription. Dimension. BL: 1.8–2.3 mm; BW: 1.1–1.7 mm. Integument color. Head black with small red-orange post-ocular macula, labrum generally brown (Fig. 49); antennomeres 1–4 red-orange, seven apical pale to dark brown (Figs 48, 49). Thorax, abdomen and fore coxa black; legs red-orange except hind femur with black macula on basal half, remaining red-orange to almost entirely black (Fig. 48). Pubescence. Head white on post-ocular lobe; small white dense patch posterior to post-ocular lobe, remainder with sparse white setae (Figs 48, 49). Labrum with scattered golden setae, denser at apex (Fig. 49). Pronotum with sparse white setae on midline and lateral third, remaining with sparse brown and golden setae. Elytra at base of 3rd, 5th and 6th interstices with white short patch of dense setae; 1st strial interval with white and golden setae, golden setae denser; 2nd strial interval with dense white setae except golden apex; mesoapical region of 3rd strial interval with white setae except golden apex; white horizontal and irregular strip from 4th to 11th interstices on submedian region, remainder of elytra with sparse white and golden setae (Fig. 47). Pygidium with three white dense patch at base, one on each lateral margin and one median, which extends in line until apex; remainder with sparse brown and golden setae (Fig. 50). Ventral surface with moderately dense white setae, denser laterally (Fig. 48). Head with frons slightly convex, frontal carina slightly evident or absent and ocular sinus deep, more than half length of eye (Fig. 49). Antennomeres 1, 3 and 4 filiform, 2 moniliform, 5–10 as long as wide, 11 globular but pointed apically. Disc of pronotum strongly sulcate at basal lobe. Elytra without denticle at base of strial. Hind femur on ventral margin with very prominent tooth (0.05–0.08 mm), microserrate (Fig. 51); hind tibia with lateroventral carina extending more than half its length (Fig. 52). Male genitalia. Median lobe strongly sclerotized, about 4.4 times longer than wide medially, apex slightly expanded; ventral valve triangular with truncate apex and lateral margins convex. Internal sac with hinge sclerites long, moderately curved and thin; apical region without spicules; subapical region with long and dense group of short spicules; submedian region with two elongated and lateral groups of long spicules; latero-basal lobes of internal sac with dense and short spicules; basal region with denticles denser near gonopore (Fig. 53). Tegmen with lateral lobes separated by emargination about 0.8 times their length (Fig. 54).

518 · Zootaxa 3736 (5) © 2013 Magnolia Press VIANA & RIBEIRO-COSTA. FIGURES 47–54. Sennius leucostauros. 47, dorsal view; 48, lateral view; 49, head, frontal view; 50, pygidium; 51, part of hind leg, internal view; 52, hind tibia, external view; 53, 54 male genitalia: 53, median lobe with hinge sclerites, others sclerites magnified and latero-basal lobes of internal sac; 54, tegmen.

Material examined. Types (14): Sennius leucostauros Johnson & Kingsolver, 1973. Holotype and Allotype deposited in USNM. Holotype, labels: “MEX.: Oax., \ Temascal, 5 mi. \ E. VI-30-64”(White) “Reared from seeds \ Cassia bicapsularis”(White) “C. D. Johnson \ collectors”(White) “U.S.N.M. \ Type Nº \ 71397”(Red) “HOLOTYPE \ Sennius leucostauros \ Johnson & Kingsolver”(Blue). Allotype, labels: same labels of holotype except the last: “ALLOTYPE \ Sennius leucostauros \ Johnson & Kingsolver” (Blue). 12 Paratypes studied, deposited in USNM (6) and CNCI (6), labels: USA: Texas: 2, “McAllen, Tex. \ 4-1-1948 \ L. J. Bottimer”(White) “ex seed of \ Cassia”(White) “L. J. Bottimer \ Collection \ Nº 90r”(White) “PARATYPE \ Sennius leucostauros \ Johnson & Kingsolver”(Blue) (USNM); 2, “McAllen, Tex. \ 7-11-1948 \ L. J. Bottimer”(White) “ex seed of \ Cassia”(White) “L. J. Bottimer \ Collection \ Nº 90r”(White) “PARATYPE \ Sennius leucostauros \ Johnson & Kingsolver”(Blue) “PARATYPE \ CNC Nº 13139” (CNCI); 4, “McAllen, Tex. \ 9-10-1948 \ L. J. Bottimer”(White) “ex seed of \ Cassia”(White) “L. J. Bottimer \ Collection \ Nº 90r”(White) “PARATYPE \ Sennius leucostauros \ Johnson & Kingsolver”(Blue) “PARATYPE \ CNC Nº 13139” (CNCI); MEX: Oaxaca: 4, “MEX.: Oax., \ Temascal, 5 mi. \ E. VI-30-64”(White) “Reared from seeds \ Cassia bicapsularis”(White) “C. D. Johnson \ collectors”(White) “PARATYPE \ Sennius leucostauros \ Johnson & Kingsolver”(Blue) (USNM). Note: The paratypes studied are part of the type material designated in Johnson & Kingsolver (1973). In addition to the museums mentioned above, others paratypes were deposited in TAMU (CD Johnson collection), CAS, FMNH and MCZ. Non-type (11): USA: Texas: Donna: 7, V/[19]36, J. W. Monk (CNCI). MEX: Veracruz: Tampico: 1, 32 mi. S., 14/IV/1972 (USNM). Oaxaca: Temascal: 3, 5 mi E., 24/VI/1964, D. H. Janzen, Cassia bicapsularis (2, DZUP; 1, USNM). Distribution. USA (Texas), MEX (Veracruz, Oaxaca, Campeche, Colima, Jalisco, Morelos), BIZ, GUA, ESA. Host Plant. FABACEAE: Caesalpinioideae: Senna pendula, S. bicapsularis. Diagnosis. Sennius leucostauros (subgroup 3) is externally similar to S. bondari and S. lojaensis (subgroup 1). All three species share the black integument with a horizontal stripe of white setae at the median region of elytra.

REVIEW OF THE SENNIUS ABBREVIATUS SPECIES GROUP Zootaxa 3736 (5) © 2013 Magnolia Press · 519 Sennius leucostauros differs by the dense golden setae with moderately white and golden setae forming a horizontal stripe on the elytra and Sennius lojaensis specimens have sparse golden with black pubescence except a dense white zig zag stripe. The male genitalia of S. leucostauros is similar to that of S. bondari (subgroup 3) and S. lebasi (subgroup 3), differing by the long, moderately curved and thin hinge sclerites; those are long, moderately curved and broad in S. bondari and short, strongly curved and thin in S. lebasi.

Sennius lojaensis (Pic, 1933) (Figs 55–62)

Bruchus lojaensis Pic, 1933: 15 (description, distribution); Bondar 1937: 42 (host, description) Acanthoscelides lojaensis: Blackwelder 1946: 760 (catalog); Silva et. al. 1968: 374 (host, distribution); Udayagiri & Wadhi 1989: 50 (catalog). Sennius lojaensis: Kingsolver & Silva 1991: 412.

Redescription. Dimension. BL: 1.5–2.3 mm; BW: 1.0–1.5 mm. Integument color. Body black, except antennomeres 1–4 or 5, tibiae, fore and mid tarsus red-orange; antennomeres 5 or 6–11 dark brown (Figs 55–57). Fore and mid femur red-orange to dark brown; hind leg dark brown to black (Fig. 56). Pubescence. Head with moderately dense white setae except for small dense patch posterior to post-ocular lobe; labrum with scattered golden setae (Fig. 57). Pronotum with white setae denser on median line and on lateral third of basal region. Scutellum with dense white setae. Elytra with scattered golden and black setae, white setae distributed as follows: moderately dense on 1st strial interval; median and subapical region of 2nd strial interval; median region of 3rd and 4th interstices and forming horizontal and irregular strip on submedian region from 5th to 11th interstices (Fig. 55). Ventral surface with moderately dense white setae, denser at base of mesepimerum and on posterior region of metepisternum (Fig. 56). Pygidium with white setae denser at base and on part of median line, remainder with scattered golden setae (Fig. 58). Head with frons convex, frontal carina slightly evident and ocular sinus deep, about half length of eye (Fig. 57). Antennomeres 1 and 3 filiform, 2 and 4 moniliform, 5–10 as long as wide, 11 globular but pointed apically. Disk of pronotum slightly sulcate at basal lobe. Elytra without denticle at base of strial. Hind femur on ventral margin with very prominent tooth (0.03–0.06 mm), microserrate (Fig. 59). Hind tibia with lateroventral carina extending more than half its length (Fig. 60). Male genitalia. Median lobe strongly sclerotized, about 4.2 times longer than wide medially, apex strongly expanded. Ventral valve elongated with truncate apex and lateral margins sinuous. Internal sac with hinge sclerites long, moderately curved and thin; apical region without spicules; subapical region with short and moderately dense group of short spicules and two wide groups of long spicules; submedian region with dense group of spicules between base of latero-basal lobes; latero-basal lobes of internal sac with dense and long spicules; basal region with denticules not denser near gonopore (Fig. 61). Tegmen with lateral lobes separated by emargination about 0.8 times their length (Fig. 62). Material examined. Type (1 Homotype): Bruchus lojaensis Pic, 1933. The type is deposited in the MNHN with labels: “Loja \ Ecuador” “type” “lojaensis \ in litt.”, but it was not possible to examine. The recognition of this species was based on drawings and notes made by Kingsolver when he studied the material from the MNHN, and the homotype determined by him in 1976 and deposited in the USNM with label: “Horto flor \ (T.C.) S. Paulo \ 17.IX.1959 \ F. halik. \ 13140”. Non-type (60): BRA: Minas Gerais: Viçosa: 1, 1/V/[19]33, E. J. Hambleton (DZUP). Rio de Janeiro: Itatiaia: 1, P. N. Itatiaia, VI/1954, H. Geuveis (MNRJ). Resende: 4, APA S. do Alambari, 19/VIII/2008, M. Torres, Senna multijuga (DZUP). Paraná: Curitiba: 1, Jardim botânico, 22/VI/1993, L. C. Haenle, Senna multijuga (DZUP); 1, 05/VIII/1998, same collector and host plant (DZUP); 1, 17/VIII/1998, same collector and host plant (DZUP); 1, 03/VII/1999, same collector and host plant (DZUP); 6, 19/X/2000, L. T. Sari, same host plant (DZUP); 29, 1º/XI/2000, same collector and host plant (DZUP); 11, 11/XI/2000, same collector and host plant (DZUP); 1, 20/XI/2000, same collector and host plant (DZUP); 2, Jardim Botânico, 26/I/2001, same collector and host plant (DZUP). Jundiaí do Sul: 1, Fazenda Monte Verde, 27/X/1986, Lev. Ent. Profaupar MALAISE (DZUP). Distribution. BRA (Bahia). New record—BRA (Minas Gerais, Rio de Janeiro, São Paulo, Paraná).

520 · Zootaxa 3736 (5) © 2013 Magnolia Press VIANA & RIBEIRO-COSTA. FIGURES 55–62. Sennius lojaensis. 55, dorsal view; 56, lateral view; 57, head, frontal view; 58, pygidium; 59, part of hind leg, internal view; 60, hind tibia, external view; 61, 62 male genitalia: 61, median lobe with hinge sclerites, others sclerites magnified and latero-basal lobes of internal sac; 62, tegmen.

Host Plant. New record—FABACEAE: Caesalpinioideae: Senna multijuga. Diagnosis. Sennius lojaensis (subgroup 1) externally resembles S. bondari and S. leucostauros (subgroup 3) and specimens with black elytra of S. nappi (subgroup 1). All four species have a horizontal strip of white setae on the submedian region of the elytra. Sennius lojaensis differs from the other three by having a vertical strip of setae on the mid-apical region that reaches the submedian horizontal strip mentioned above. The male genitalia of S. lojaensis resembles that of S. nappi, however at the subapical region of the internal sac has larger dense groups of spicules similar to an open hand fan, whereas in S. nappi the spicules are aligned side by side.

Sennius medialis (Sharp, 1885) (Figs 63–71)

Bruchus medialis Sharp, 1885: 470 (description, distribution); Pic 1913: 34 (catalog). Acanthoscelides medialis: Blackwelder 1946: 760 (catalog). Sennius medialis: Johnson & Kingsolver 1973: 78 (description, key, figures, type designation, taxonomy, distribution, host); Center & Johnson 1973: 670 (biology); Center & Johnson 1974: 1098 (host, guild); Johnson 1977: 123 (host); Johnson 1979: 123 (host); Johnson & Slobodchikoff 1979: 1059 (citation); Johnson & Kingsolver 1981: 419 (list); Udayagiri & Wadhi 1989: 105 (catalog); Luna-Cozar et al. 2002: 26 (list); Turnbow et al. 2003: 276 (list); Kingsolver 2004: 200 (key, diagnosis, figures, host, distribution); Romero-Nápoles & Johnson 2004: 627 (list); Johnson & Romero 2004: 404 (biology); Lorea-Barocio et al. 2006: 519 (distribution, host). Bruchus auctus Fall, 1910: 166 (description, key, figures, distribution); Johnson & Kingsolver 1973: 78 (synonym). Mylabris auctus: Leng 1920: 305 (catalog). Sennius auctus: Bottimer 1968: 1026; Johnson 1968: 1270 (type designation).

Redescription. Dimension. BL: 1.6–2.3 mm; BW: 1.2–1.6 mm. Integument color. Head black, sometimes with red-orange post-ocular macula, labrum red-orange to brown

REVIEW OF THE SENNIUS ABBREVIATUS SPECIES GROUP Zootaxa 3736 (5) © 2013 Magnolia Press · 521 (Fig. 65); all antennomeres red-orange or 6–11 pale to dark brown (Figs 64, 65). Pronotum and pygidium black (Figs 63, 66); base and apex of elytra dark brown to black, median region of each elytron with red-orange rounded macula generally extending from 1st strial interval to outer margin (Fig. 63), sometimes occupying almost entire elytra. Remainder of thorax black (Fig. 64). Legs red-orange except forecoxa, hind tarsus and base of hind femur, dark brown to black (Fig. 64). Pubescence. Head with white setae on post-ocular lobe and small dense patch posterior to post-ocular lobe, remainder with sparse white setae. Pronotum with white and/or golden setae. Elytra with moderately dense white setae evenly distributed or white and golden setae moderately dense except by white horizontal strip extending from base of 4th to 11th interstices to near de apex of red-orange macula of median region (Fig. 63). Pygidium and ventral surface with moderately dense white setae, denser on posterior margin of metepisternum and basal region of pygidium (Figs 64, 66).

FIGURES 63–71. Sennius medialis. 63, dorsal view; 64, lateral view; 65, head, frontal view; 66, pygidium; 67, base of elytra strial; 68, part of hind leg, internal view; 69, hind tibia, external view; 70, 71 male genitalia: 70, median lobe with hinge sclerites, others sclerites magnified and latero-basal lobes of internal sac; 71, tegmen.

Head with frons convex, frontal carina present and ocular sinus deep, more than half length of eye (Fig. 65). Antennomeres 1 and 3 filiform, 2 and 4 moniliform, 5–10 wider than long, 11 globular but pointed apically. Disc of pronotum strongly sulcate at basal lobe. Elytra with denticles at base of 3rd and 4th strial (Fig. 67). Hind femur on ventral margin with very prominent tooth (0.03–0.08 mm), not microserrate (Fig. 68); hind tibia with lateroventral carina not reaching half its length (Fig. 69). Male genitalia. Median lobe weakly sclerotized, about 5.5 times longer than wide medially, apex strongly expanded. Ventral valve triangular with truncate apex and lateral margins convex. Internal sac with hinge sclerites long, slightly curved with apex broader; apical region with group of spicules near ventral valve; subapical region with short and slightly dense group of spicules; submedian region without spicules; latero-basal lobes of internal sac with dense and long spicules; basal region with dense spicules throughout (Fig. 70). Tegmen with lateral lobes separated by emargination about 0.7 times their length (Fig. 71). Material examined. Type (3 Homotypes): Bruchus medialis Sharp, 1885. In the original description, Sharp studied two males and one female, all distributed in Mexico—Guanajuato (Sallé). They are deposited at the BMNH

522 · Zootaxa 3736 (5) © 2013 Magnolia Press VIANA & RIBEIRO-COSTA. and it was not possible to examine them. The species was recognized based on Johson & Kingsolver (1973), who revised the species, and the study of the three homotypes deposited in TAMU, with labels: 1, “13 mi. N. \ Imuris, Son. \ Mex. VIII-16-65”(White) “C. D. Johnson \ Collector”(White) “Sennius \ medialis \ (Sharp) 19 \ det. C. D. Johnson”(White) “Homotype”(White) “ex. C. D. Johnson Collection \ August 1999, Texas A&M \ University Insect Collection” (TAMU); 1, “9 mi. NE Guana- \ juato, Gto., \ Mex. VI-7-68”(White) “sweeping \ flowers \ #65- 68” (White) “Taken by \ sweeping”(White) “Cassia \ tomentosa”(White) “C. D. Johnson \ collector”(White) “HOMOTYPE \ Bruchus \ medialis Sharp \ det. C. D. Johnson”(Pink) “ex. C. D. Johnson Collection \ August 1999, Texas A&M \ University Insect Collection” (TAMU); 1, “Ariz. 2 mi. SW. \ Patagonia \ Sta. Cruz Co. \ IX-10- 1956”(White) “Collectors: L & C. W. O’Brien”(White) “Sennius auctus \ (Fall) \ similar to type \ 1967 \ det. C. D. Johnson”(Red) “ex. C. D. Johnson Collection \ August 1999, Texas A&M \ University Insect Collection” (TAMU). Non-type (241): USA: California: East Mojave Scenic Area: 1, VI-18-[19]93, W. F. Chamberlain (TAMU). Arizona: Altar Valley: 2, XII/1925, L. J. Bottimer (CNCI); 1, 1926, same collector, Cassia leptocarpa (CNCI); 4, 20/XII/1925, same collector and host plant (CNCI); 2, Baboquivari Mountains: 29/IV/1935, F. H. Parker (FSCA); 1, 12/V/[19]25, L. J. Bottimer, Cassia leptocarpa (CNCI); 2, 12/V/1925, same collector and host plant (TAMU); 2, 7/II/[19]25, same collector and host plant (TAMU); 3, VI/1925, same collector and host plant (CNCI); 2, 27/V/ [19]25, same collector and host plant (CNCI); 5, 12/V/[19]25, same collector and host plant (CNCI). Cochise: 2, Carr Cyn. Huach. Mts, 2/VIII/[19]72, C. D. Johnson (TAMU); 4, Just E. of Coronado Nat. Monument, 10/VIII/ 1976, G. H. Nelson, Cassia sp. (FSCA); 2, Ft. Huachuca, 27/IX/1968, Dwight Schuh (TAMU); 9, Carr Cyn Huachuca Mts., 9/X/[19]71, C. D. Johnson, Cassia leptocarpa (TAMU); 4, Huachuca Mts., 8/VI/[19]25, L. J. Bottimer, Cassia leptocarpa (CNCI); 5, same locality, 21/VI/[19]25, same collector and host plant (CNCI); 2, same locality, 2/VII/[19]25, same collector and host plant (CNCI); 6, Huachuca Mts. Ramsey Canyon, 5/X/1956, same collector and host plant (TAMU); 5, same locality, 3/X/[19]56, same collector and host plant (CNCI); 3, same locality, 4/X/[19]56, same collector and host plant (CNCI); 8, same locality, 10/X/[19]56, same collector and host plant (2, USNM; 6, CNCI); 5, same locality, 11/X/[19]56, same collector and host plant (3, CNCI; 2, TAMU); 10, same locality, 14/X/[19]56, same collector and host plant (9, CNCI; 1, TAMU); 3, same locality, 16/X/[19]56, same collector and host plant (CNCI); 1, same locality, 23/X/[19]56, same collector and host plant (CNCI); 4, Huachuca Mts. Carr Canyon, 5/X/1956, same collector and host plant (CNCI); 7, same locality, 11/X/1956, same collector and host plant (5, CNCI; 2, TAMU); 1, same locality, Nov/1956, same collector and host plant (CNCI); 2, same locality, 1956, same collector and host plant (TAMU); 1, Montezuma Pass, 10/X/1956, same collector and host plant (USNM); 1, XI/1956, same collector and host plant (CNCI); 3, X/1956, same collector and host plant (1, CNCI; 2, TAMU); 3, 4/X/1956, same collector and host plant (1, TAMU; 2, CNCI); 1, 19/X/1956, same collector and host plant (TAMU); 1, XII/1956, same collector and host plant (TAMU); 1, 22/X/1956, same collector and host plant (TAMU); 1, 16/X/1956, same collector and host plant (TAMU); Douglas: 1, 23/VIII/[19]26 (CNCI). Sta. Cruz: 6, Hidden Sprs. Valley 9 mi. E. Sonoita, VII/[19]64, R. F. Sternitzky(5 CNCI; 1, TAMU); 1, Pens Blanca Pajarito Mts., 9/VIII/1961, R. H. Arnett Jr. & E. VanTassell (FSCA); 12, 8 mi. W. Wash. Camp, 19/VIII/[19]67, C. D. Johnson, Cassia leptocarpa (TAMU). Nogales: 1, 10/IX/1906, Koebele (TAMU). Pima: 3, 3 mi. E. Florida Work Cent., 25/VIII/1994, R. Turnbow (FSCA); 1, Portal Southwestern Research Station, 26/VII/1961, L. J. Bottimer (CNCI); 2, Rincon Mts.,27/V/1928, A. A. Nichol (CNCI). Sta Rita mts: 1, 10/VII/[19]30, E. D. Ball (USNM); 1, 16/VIII/[19]40, Van Dyle (TAMU); 2, 13/XII/1925, L. J. Bottimer, Cassia leptocarpa (CNCI); 1, 18/I/ 1926, same collector and host plant (CNCI); 1, 24/XI/1925, same collector and host plant (CNCI). Sierra Vista: 9, Huachuca Mts., III/1965, R. F. Sternitzky (CNCI); 1, same locality, V/1965, same collector (CNCI); 2, same locality, IV/1965, same collector (CNCI); 1, same locality, 1–15/VI/1965, same collector (CNCI). Sierrita Mts.: 2, 11/VI/1925, L. J. Bottimer, Cassia leptocarpa (CNCI). Superstition Mts.: 1, 26/IX/1925, same collector (CNCI); New Mexico: Grant: 1, 12 mi. E. Central, 19/VIII/1980, T. P. & T. A. Friedlander & P. W. Kovarik (TAMU). Otero: 2, 14 mi. SW Alamogordo, 25/IV/1998, E. G. Rilley (TAMU). Deming: 1, Rock Hound State Park, 7/V/ [19]97, W. F. Chamberlain (TAMU). Guadalupe: 3, Santa Rosa State Park, 18/VI/1999, G. M. Chamberlain (TAMU). Texas: Brewster: 9, Heath Canyon Ranch, 3/VII/1999, E. G. Riley (TAMU). Duval: 4, 8.5 mi. NW San Diego, 18/IX/1993, E. G. Riley (TAMU). Eddy: 3, Dark Cyn Rd 5 m W Hwy 62, 26/IX/1997 Wappers & Huether (TAMU). Edwards: 2, 18 mi. N Carta Vale on Hwy. 377, 30/VIII/1986 Haack & Kovarick (TAMU). Hidalgo: 2, Bentsen-Rio Grande Valley St. Pk., 9/X/1994, E. G. Riley (TAMU). Jeff Davis: 1, Point of Rocks Rest Stop., 10/ VIII/1992, W. Godwin & E. Riley (TAMU). Valverde: 4, Seminole Canyon St. Pk. Rio Grande Trall, 20/VII/1986, Woolley & Zolnerowich (TAMU); 2, 39 mi. NNW Comstock (Texas road 1024), 12/V/1997, Gillogly & Schaffner

REVIEW OF THE SENNIUS ABBREVIATUS SPECIES GROUP Zootaxa 3736 (5) © 2013 Magnolia Press · 523 (TAMU); 2, Virgil Crossing Devils Riv. nr., 4-29/6/1997, E. G. Riley (TAMU). San Antonio: 1, 8 miles east of San Antonio, 25/V/[19]97, W. F. Chamberlain (TAMU). South Carolina: Columbia: 1, 20 miles west of Columbia, 7/ V/1997, W. F. Chamberlain (TAMU). MEX: No locality: 1, 6/I/[19]68, I. F. Schaen, Cassia sp. (USNM). Nuevo Leon: La Ascension: 3, 2 miles north of La Ascension, 24/VII/1976, Peigler Gruetzmacher R & M Murray Schaffner (TAMU). Zacatecas: Fresnillo: 3, 15 mi N. E. Fresnillo, 8&9/VII/[19]64 (1, FSCA; 2, CNCI). Jalisco: Chapala: 6, 16/VIII/[19]49, L. J. Bottimer (CNCI). Guanajuato: Sonora: 1, 7 m SE Alamos, 27/XI/1970, K. Stephan (FSCA). Guanajuato: 8, 9 mi. NE Guanajuato, 7/VI/[19]68, C. D. Johnson, Cassia tomentosa (TAMU). Michoacán: Pataquero: 4, VIII/1938, L. J. Lipovsky (TAMU). Patzcuaro: 3, IX/1949, L. J. Bottimer, Cassia occidentalis (CNCI). Morelos: Cuernavaca: 2, III/1945, N. L. H. Krauss (USNM). Queretaro: Queretaro: 3, 29/ VII/[19]63, L. J. Bottimer (2, CNCI; 1, TAMU). HON: Olancho: 1, Km. NE. Teg. Candelera, 21/XI/[19]86, R Fisher, Cassia sp., 1 (FSCA). Distribution. US (Santa Cruz, California, Arizona, New Mexico, Texas, South Carolina), MEX (Sonora, Nuevo Leon, Zacatecas, Jalisco, Guanajuato, Michoacan, Morelos, Queretaro, Colima, Mexico State, Puebla) GUA, HON (Olancho). Host Plant. FABACEAE: Caesalpinioideae: Senna hirsuta (syn for Cassia leptocarpa), S. occidentalis, S. bauhinioides Gray , S. multiglandulosa (Jacq.) Irwin & Barneby (syn for Cassia tomentosa), S. obtusifolia. Diagnosis. Sennius medialis (subgroup 2) resembles externally S. abbreviatus (subgroup 1) and S. durangensis (subgroup 2). The similarities and differences between these species are mentioned under the "Diagnosis" of the respective species. The male genitalia of S. medialis and Sennius flinte sp. nov. are similar, corresponding to weakly sclerotized versions of the pattern found in the S. abbreviatus group. For this reason these two species are placed in subgroup 2. However, they are easily distinguished by their external morphology, mainly by the integument color of the elytra (black, each with macula, in S. medialis and red-orange in Sennius flinte sp. nov.).

Sennius nappi Ribeiro-Costa & Reynaud, 1998 (Figs 72–74)

Sennius nappi Ribeiro-Costa & Reynaud, 1998: 249 (original description, distribution, type, figures, host); Caron et al. 2004: 5 (egg description); Sari et al. 2005:169–174 (biology); Sari & Ribeiro-Costa 2005:521–525 (biology); Viana & Ribeiro- Costa 2013 (redescription, distribution, type, host, figures).

Redescription. Dimension. BL: 1.80–2.84 mm; BW: 1.08–1.72 mm. Elytra completely black or generally with submedian horizontal, irregular, orange red to dark brown maculae, extending from 3rd or 4th to 8th or 9th interstices, sometimes maculae with darker color extending to apical region, rarely elytra without maculae (Fig. 72). Male genitalia with hinge sclerites long, moderately curved with apex and base broader; apical region with group of spicules near ventral valve; subapical region with long and dense group of short spicules apparently forming three vertical groups; submedian region with tree groups of long spicules, two lateral and one medial; latero-basal lobes of internal sac with dense and long spicules; basal region with dense denticles throughout (Fig. 73). Tegmen with lateral lobes separated by emargination about 0.7 times their length (Fig. 74). Material examined and detailed diagnosis. See Viana & Ribeiro-Costa 2013. Distribution. BRA (Mato Grosso, Mato Grosso do Sul, Rio de Janeiro, Paran). Host plants. FABACEAE: Caesalpinioideae: Senna multijuga, S. neglecta var. oligophylla, S. neglecta var. neglecta, S. rugosa (G. Don) Irwin & Barneby, S. occidentalis, S. obtusifolia. Diagnosis. S. nappi is more similar to S. transversesignatus, sharing some external characters and the male genitalia pattern from subgroup 1. Sennius nappi differs externally from S. transversesignatus by the color of the last seven antennomeres, the absence of white setal patches near the base of the elytron and some characters in the internal sac: the region where the lateral clusters is located and the absence of two moderately dense clusters of large spicules in the basal region.

524 · Zootaxa 3736 (5) © 2013 Magnolia Press VIANA & RIBEIRO-COSTA. FIGURES 72–74. Sennius nappi. 72, dorsal view; 73, 74 male genitalia: 73, median lobe with hinge sclerites, others sclerites magnified of internal sac; 74, tegmen.

Sennius rufomaculatus (Motschulsky, 1874) (Figs 75–82)

Bruchus rufomaculatus Motschulsky, 1874: 222 (description, distribution). Acanthoscelides rufomaculatus: Blackwelder 1946: 761 (catalog). Sennius rufomaculatus: Kingsolver 1979: 342; Johnson & Kingsolver 1981: 419 (catalog, distribution); Udayagiri & Wadhi 1989: 106 (catalog); Kingsolver 1992: 78 (distribution); Alvarez-Marin & Kingsolver 1997: 210–219 (catalog); Turnbow et al. 2003: 276 (list); Romero-Nápoles & Johnson 2004: 627 (list); Lorea-Barocio et al. 2006: 519 (distribution, host). Bruchus instabilis Sharp, 1885: 466 (description, distribution); Kingsolver 1979:342 (synonym). Acanthoscelides instabilis: Blackwelder 1946: 759 (catalog). Sennius instabilis: Johnson & Kingsolver 1973: 88 (description, key, figures, type designation, taxonomy, distribution, host); Johnson 1977: 129 (host); Johnson 1980: 30 (host). Bruchus ricanus Pic, 1929: 36 (description, distribution); Johnson & Kingsolver 1973: 88 (synonym). Acanthoscelides ricanus: Blackwelder 1946: 761 (catalog). Bruchus turrialbanus Pic, 1930: 10 (description, distribution); Johnson & Kingsolver 1973: 88 (synonym). Acanthoscelides turrialbanus: Blackwelder 1946: 761 (catalog).

Redescription. Dimension. BL: 1.5–2.4 mm; BW: 1.0–1.6 mm. Integument color. Head black, generally with small red-orange post-ocular macula, labrum brown to black; antennomeres 1–4 red-orange, 5–11 red-orange to brown (Figs 76, 77). Elytra entirely black or black with red- orange, horizontal macula in each elytron occupying most of anterior region, except black humerus, extending from 2nd or 3rd to 8th, 9th or 10th interstices (Fig. 75). Prothorax, forecoxa, pygidium and ventral region black (Figs 75–78). Legs generally red-orange, sometimes base of hind femur black (Fig. 76). Pubescence. Head white setae on post-ocular lobe; small dense white and golden patch posterior to post-ocular lobe (Fig. 76), remainder with sparse white setae. Pronotum with sparse brown setae along midline, flanked by sparse white or white and golden setae, white setae laterally becoming moderately dense. Elytra with white and gold setae, base of 3rd and 5th interstices with denser patch (Fig. 75); if elytra black, wide and sparse horizontal strip of white setae on anterior region. Ventral surface with moderate to dense white or golden setae (Fig. 76). Pygidium with dense white and golden setae generally forming patch at basal region and on narrow median vertical strip, remainder with white and golden setae moderately dense (Fig. 77). Head with frons convex, frontal carina slightly evident or absent and ocular sinus deep, about half length of eye (Fig. 77). Antennomeres 1 and 3 filiform, 2- and 4 moniliform, 5–10 wider than long, 11 globular but pointed apically. Disc of pronotum strongly sulcate at basal lobe. Elytra without denticle at base of strial. Hind femur on ventral margin with very prominent tooth (0.03–0.07 mm), not microserrate (Fig. 79); hind tibia with lateroventral carina not reaching half its length (Fig. 80).

REVIEW OF THE SENNIUS ABBREVIATUS SPECIES GROUP Zootaxa 3736 (5) © 2013 Magnolia Press · 525 FIGURES 75–82. Sennius rufomaculatus. 75, dorsal view; 76, lateral view; 77, head, frontal view; 78, pygidium; 79, part of hind leg, internal view; 80, hind tibia, external view; 81, 82 male genitalia: 81, median lobe with hinge sclerites, others sclerites magnified and latero-basal lobes of internal sac; 82, tegmen.

Male genitalia. Median lobe strongly sclerotized, about 5.1 times longer than wide medially, apex slightly expanded. Ventral valve rounded with round apex and lateral margins convex. Internal sac with hinge sclerites short, strongly curved, with base broader; apical region with two groups of spicules in line, near ventral valve; subapical region with long and dense group of short spicules; submedian region with sparse denticles and two curved, wide and lateral groups of long spicules; latero-basal lobes of internal sac with few short spicules; basal region with dense denticles throughout (Fig. 81). Tegmen with lateral lobes separated by emargination about 0.8 times their length (Fig. 82). Material examined. Type: Bruchus rufomaculatus Motschulsky, 1874. Studying the types deposited at ZMUC, NHRS and ZMUM, Kingsolver (1979) synonymized Bruchus instabilis Sharp 1885 (Type locality: Guatemala) with B. rufomaculatus Motschulsky, 1874, however he did not specify in which museum was deposited the type of B. rufomaculatus. Followed the ZMUM website all V. Motschulsky types are deposited in their collection and probably the type of this species is there, but we have no answer from the curator of this museum until now. However B. instabilis was reviewed by Johnson & Kingsolver (1973) and based on this paper the species was recognized. Non-type (100): USA: Arizona: Nogales: 1, 11/IV/[19]71, Ehni (USNM). ME: Sonora: Alamos: 17, 8 mi N. W. Alamos, 23/XII/[19]76, C. D. Johnson, Cassia obtusifolia (TAMU); 6, 5 mi W Alamos, 26/XII/[19]76, same collector and host plant (TAMU). Chihuahua: Cuauhtemoc Chis.: 1, 5/VI/1969, J. M. Campbell (CNCI). Sinaloa: El Palmito: 1, 15 mi W El Palmito, 30/VII/1964, W. R. M. Mason (CNCI). Durango: El Salto: 1, 37 mi W El Salto 10/VI/1964, H. F. Howden (CNCI). Nayarit: Ixtian Del Rio: 6, 24 mi NW Ixtian Del Rio, 5/I/[19]73, C. D. Johnson, Cassia leptocarpa (TAMU). Jalisco: Magdalena: 9, 18 mi W Magdalena, 5/I/[19]73, same collector and host plant (TAMU). Hidalgo: Paloma: 1, 28/VIII/[19]56, R. & K. Dreisbach (CNCI). Puebla: Puebla: 2, 35 mi S Puebla, 25/II/[19]53, D. G. Kissinger (CNCI). Michoacán de Ocampo: Morelia: 1, 20 mi E Morelia, 7/III/[19]53, same collector (CNCI). Colima: Colima: 7, 10 mi N Colima, 6/III/[19]73, C. D. Johnson, Cassia sp. (TAMU). Morelos: Cuernavaca: 2, 5/V/1932, C. C. Plumer (CNCI); 1, 16 mi South, 22/VIII/[19]58, H. Howden (CNCI).

526 · Zootaxa 3736 (5) © 2013 Magnolia Press VIANA & RIBEIRO-COSTA. Guerrero: Acapulco: 1, XII/1963, N L H Krauss (USNM); 1, 15 miles N. E. of Acapulco, 13/I/1956, J. C. Schaffner (CNCI); 1, Km. 300 Acapulco–Guerrero, 8/X/[1]961, Pereira & Halffter (MZSP). El Ocotito: 1, 19/VII/ [19]62, H. E. Milliron (CNCI). Oaxaca: Puerto Escondido: 10, 66 Km NW Puerto Escondido, 6/I/[19]80, C. D. Johnson, Cassia obtusifolia (TAMU). JAM: Manchester: Mizpah: 1, 16/VIII/1966 (CNCI). DOM: Pedernales: Cabo Rojo: 1, 25.5 km. N Cabo Rojo, 21/V/1992, R. Turnbow (USNM). GUATEMALA: Retalhuleu: Champerico: 1, Baker (USNM). PUR: Isabela: 1, Punta Rosario, 14/I/[19]63, Paul J. Spangler (USNM). Tallaboa: 2, 12/IV/1931, S. T. Danforth, Acacia (CNCI). Trujillo Alto: 1, 21/VIII/[19]61, Flint & Spangler (USNM). HON: El Zamorano: Sn Antonio de Oriente: 1, Fco. Morazán, 9–14/II/1990, R. Cave (USNM). ESA: San Salvador: San Salvador: 1, 5/VI/[19]58, L. J. Bottimer (CNCI); 1, 17/VI/[19]58, same collector (CNCI). GLP: Grande Terre: Grande Terre: 1, VI/1968, J. Maldonado (USNM). CRC: Guanacaste: Playa del Coco: 8, 15/XII/1970, D. H. Janzen, herbaceous legume (USNM). San Mateo: Hiquito: 1, Pablo Ochild (USNM). PAN: Chiriqui: no locality: 1, XII/[19]46, N L H Krauss (USNM). Puerto Armuelles: 1, 15/I/1983, Linda Stephens & Bryce Edmonson (USNM). TRI: Trinidad: Mucurapo: 1, II/22/1961, N. Gopaal (CNCI); St. Augustine: 1, 9/VII/1994, B. K. Dozler (USNM); 3, 8–12/I/1959 (CNCI). Tobago: no locality: 1, 13–15/VII/[19]62, J. Maldonado (USNM); Goldsborough: 1, 24–31/III/1994, M. J. Sommeijer (USNM); 1, 3–10/III/1994, M.J. Sommeijer (USNM). Distribution. USA (Arizona), MEX (Sonora, Chihuahua, Sinaloa, Durango, Nayarit, Jalisco, Hidalgo, Puebla, Michoacan de Ocampo, Colima, Morelos, Guerrero, Oaxaca, Chiapas, Guanajuato, San Luis Potosi, Tabasco, Tamaulipas, Veracruz, Yucatan, Zacatecas), JAM (Manchester), DOM (Pedernales), GUA (Retalhuleu), PUR, HON (El Zamorano, Atlándida, Copan Cortes El Paraiso Francisco Morazan, Intibucá, La Paz, Olancho, Yoro), ESA (San Salvador), NCA (Granada, León), GLP (Grande Terre), CRC (Guanacaste, San Mateo, Alajuela), PAN (Chiriqui), TRI, GRN, COL. Host plant. FABACEAE: Caesalpinioideae: Senna alata, S. occidentalis, S. obtusifolia, S. hirsuta (syn for Cassia leptocarpa), S. cobanensis, S. uniflora, S. galegifolia, S. polyphylla, S. tora. ZINGIBERACEAE: Amomum sp. Diagnosis. Sennius rufomaculatus is a extremely variable species. According to Johnson & Kingsolver (1973) this species have a widespread distribution and the variation on the tegument color and pubescence “is gradual over the range of this species, but similar specimens can be found in all parts of the range”. Sennius rufomaculatus is similar to S. durangensis, S. medialis (both subgroup 2) and S. abbreviatus (subgroup 1) in the color of the pubescence and the presence of macula on the elytra. The difference between S. rufomaculatus and these species are discussed in the diagnosis of them. The few specimens of S. rufomaculatus that are completely black resemble specimens of S. leucostauros and S. bondari. However, they can be distinguished by the absence of white setae on the elytra forming a cross pattern in S. rufomaculatus.

Sennius transversesignatus (Fåhraeus, 1839) (Figs 83–91)

Bruchus transversesignatus Fåhraeus, 1839: 26 (description, distribution); Gemminger & Harold 1873: 3231 (catalog, distribution); Costa Lima 1923: 182 (host); Zacher 1952: 472 (citation). Acanthoscelides transversesignatus: Blackwelder 1946: 761 (catalog); Silva et. al. 1968: 375 (catalog, host, distribution); Udayagiri & Wadhi 1989: 66 (catalog). Sennius transversesignatus: Kingsolver 1979: 412; Ribeiro-Costa & Reynaud 1998: 251 (citation).

Redescription. Dimension. BL: 1.9–2.7 mm; BW: 1.2–1.8 mm. Integument color. Body black, maxillary and labial palpi dark brown; antennomeres 1–4 red-orange, 5–11 dark brown (Figs 84, 85). Elytra black, each with red-orange rounded macula on posterior region reaching outer margin (Fig. 83). Fore and mid leg red-orange; hind femur pale brown to black, hind tibiae and tarsus pale to dark brown (Fig. 84). Pubescence. Head with moderately dense white setae, except for small dense patch on post-ocular lobe; labrum with scattered golden setae (Figs 84, 85). Pronotum with white setae laterally and on midline, remainder with scattered golden setae. Elytra with sparse golden setae and moderately dense white setae in 1st strial interval from basal to subapical region, on median region of 2nd strial interval and horizontal strip on submedian region covering red-orange macula (Fig. 83). Pygidium with moderately dense white setae on basal region, denser

REVIEW OF THE SENNIUS ABBREVIATUS SPECIES GROUP Zootaxa 3736 (5) © 2013 Magnolia Press · 527 laterally and on mid basal region, remainder with sparse golden setae. Ventral surface with moderately dense white setae, denser on mesepimerum base and on posterior region of metepisternum (Fig. 84). Head with frons slightly convex, frontal carina slightly evident or absent and ocular sinus slightly deep, less than half length of eye (Fig. 85). Antennomeres 1 and 3 filiform, 2 and 4 moniliform, 5–10 wider than long, 11 globular but pointed apically. Disc of pronotum strongly sulcate at basal lobe. Elytra with denticle at base of 2nd strial (Fig. 87). Hind femur on ventral margin with very prominent tooth (0.06–0.10 mm), not microserrate (Fig. 88); hind tibia with lateroventral carina not reaching half its length (Fig. 89).

FIGURES 83–91. Sennius transversesignatus. 83, dorsal view; 84, lateral view; 85, head, frontal view; 86, pygidium; 87, base of elytra strial; 88, part of hind leg, internal view; 89, hind tibia, external view; 90, 91 male genitalia: 90, median lobe with hinge sclerites, others sclerites magnified and latero-basal lobes of internal sac; 91, tegmen.

Male genitalia. Median lobe strongly sclerotized, about 4.7 times longer than wide medially, apex strongly expanded. Ventral valve triangular with round apex and lateral margins concave. Internal sac with hinge sclerites; hinge sclerites long, strongly curved and thin; apical region with group of spicules near ventral valve; subapical region with two long and dense groups of short spicules; submedian region with four dense groups of long spicules grouped in pairs, two smaller groups near subapical region; latero-basal lobes of internal sac with dense and long spicules; basal region with sparse denticles near gonopore (Fig. 90). Tegmen with lateral lobes separated by emargination about 0.8 times their length (Fig. 91). Material examined. Type (1): Bruchus transversesignatus Fåhraeus, 1839. Syntype deposited in NHRS, with labels: “Typus” (Red) “In Semin. \ Cassiæ Bras. [Brasiliæ] \ Faldermann”(white). Note: In the original description, Fåhraeus (1839) did not mention how many specimens were studied. It was received from NHRS only one female specimen with type label which is here considered as syntype. Non-type (62): TRI: Trinidad: St. Augustine: 1, II/1959, F. Bennet (CNCI); 2, 8–12/I/1959 (USNM). BRA: Goiás: Catalão: 1, 28/V/[19]66, S. Laroca (DZUP). Minas Gerais: Passos: 1, 8–14/V/[19]63, Claudionor Elias (DZUP). Rio de Janeiro: Maricá: 1, Barra de Maricá, III–VI/1996, M. Pimentel, Senna australis (DZUP); 52, III– VI/[19]96, same collector (DZUP); 2, III/1987, L. R. C. Souza, Cassia australis (DZUP). São Paulo: Ibitinga: 1, 6/ IX/[19]88, E. C. Bergmann (DZUP). BOL: La Paz: Sud Yungas: 1, Puente Villa, 19–24/V/1989, J. E. Eger (DZUP).

528 · Zootaxa 3736 (5) © 2013 Magnolia Press VIANA & RIBEIRO-COSTA. Distribution. TRI, COL, BRA (Goias, Minas Gerais, Rio de Janeiro, São Paulo) and BOL (Sud Yungas, Santa Cruz). Host plants. FABACEAE: Caesalpinioideae: Senna appendiculata (syn for S. australis) Diagnosis. Sennius transversesignatus belongs to subgroup 1 of the S. abbreviatus group, along with seven species. It seems more similar to S. nappi, sharing the same pattern of the color integument, pubescence of elytra and male genitalia. Differences in color, pubescence and the structures of the male genitalia are discussed under "Diagnosis" of S. nappi and in Viana & Ribeiro-Costa (2013).

Sennius trinotaticollis (Pic, 1930) (Figs 92–99)

Bruchus trinotaticollis Pic, 1930: 11 (description, distribution). Acanthoscelides trinotaticollis: Blackwelder 1946: 761 (catalog ). Sennius trinotaticollis: Johnson & Kingsolver 1973: 96 (description, key, figures, type designation, taxonomy, distribution); Johnson 1977: 131 (distribution, host); Johnson & Kingsolver 1981: 419 (catalog, distribution); Udayagiri & Wadhi 1989: 107 (catalog); Romero-Nápoles & Johnson 2004: 627 (list); Pikart et. al. 2011: 378, 379 (distribution, host).

Redescription. Dimension. BL: 1.8–2.4 mm; BW: 1.5–1.7 mm. Integument color. Head black with small red-orange post-ocular macula, labrum red-orange; all antennomeres generally red-orange, sometimes 6–11 pale brown (Figs 93, 94). Elytra brown, each with horizontal red-orange strip on basal third, except humerus, occupying part of 4th to 11th interstices, 1st to 3rd interstices brown to dark brown, sometimes subapical pale brown macula occupying part of 4th to 9th interstices (Fig. 92). Prothorax generally black, sometimes brown. Basal half of pygidium red-orange, apical half brown to dark brown, sometimes pygidium completely brown (Fig. 95).Ventral region pale brown to black (Fig. 93). Legs generally red-orange, sometimes pale brown (Fig. 93). Pubescence. Head with white setae in post-ocular lobe, small dense white patch posterior in the post-ocular lobe (Figs 93, 94), remainder with sparse white setae. Pronotum generally with three patch of dense white and golden setae at base, remainder with sparse golden setae. Elytra with sparse brown setae with dense white setae in 1st strial interval, anterior region of 2nd strial interval, median region of 3rd strial interval, and forming horizontal strip on anterior region of 4th to 9th interstices and, at base of 2nd and 3rd interstices, sometimes with patch apically (Fig. 92). Ventral surface with dense white setae (Fig. 93). Pygidium generally with dense white setae on laterobasal region and on basal half, extending on midline up to center of pygidium, remainder with brown and white setae (Fig. 95) Head with frons convex, frontal carina present and ocular sinus deep, more than half length of eye (Fig. 94). Antennomeres 1 and 3 filiform, 2 and 4 moniliform, 5–10 wider than long, 11 globular but pointed apically. Disc of pronotum strongly sulcate at basal lobe. Elytra without denticle at base of strial. Hind femur on ventral margin with very prominent tooth (0.07–0.13 mm), microserrate (Fig. 96); hind tibia with lateroventral carina extending half its length (Fig. 97). Male genitalia. Median lobe strongly sclerotized, about 4.5 times longer than wide medially, apex strongly expanded. Ventral valve rounded with round apex and lateral margins convex. Internal sac with hinge sclerites long, slightly curved and thin; apical region with group of spicules near ventral valve; subapical region with dense group of spicules; submedian region continuing with part of the subapical group of spicules and with sparse circular sclerites; latero-basal lobes of internal sac with dense and long spicules; basal region with dense denticles throughout (Fig. 98). Tegmen with lateral lobes separated by emargination about 0.7 times their length (Fig. 99). Material examined. Type (1 Homotype): Bruchus trinotaticollis Pic, 1930. The type is deposited in MNHN, with locality “Costa Rica” and it was not possible to study it. The recognition of this species was based on Johnson & Kingsolver (1973), drawings and notes made by Kingsolver when he studied the material from MNHN, and the homotype determined by him in 1971 and deposited at MNHN, with labels: “Brazil \ Bahia \ 1929 \ Dr. G Bondar. \ On wild \ Leguminous \ plant. \ 349”(Yellow) [Three labels not readable](Yellow) “Homotype \ trinotaticollis \ det. 71 Pic \ J. M. Kingsolver”(White) “Sennius \ trinotati- \ collis \ det. 71 Pic \ J. M. Kingsolver”(White). Non-type (32): CRC: Guanacaste: Santa Rosa N. Park: 3, 10/III/1979, D. H. Janzen (USNM). PAN: Colón: Gamboa: 17, 24/II/1964, L. J. Bottimer, Cassia maxonii (7, CNCI; 10, TAMU). Elhlano: 10, 4 Km W Elhlano, 3/

REVIEW OF THE SENNIUS ABBREVIATUS SPECIES GROUP Zootaxa 3736 (5) © 2013 Magnolia Press · 529 IV/[19]80, C. D. Johnson, Senna hayesiana (TAMU). BRA: Minas Gerais: Viçosa: 10, 2009, T. G. Pikart, Senna macranthera (DZUP). São Paulo: Campinas: 2, 12–17/VII/1987, Senna sp. (DZUP). Distribution. MEX (Tabasco), GUA (Izabal), CRC (Guanacaste), PAN (Colon), TRI, VEN, COL, BRA (Minas Gerais). New record—BRA (São Paulo). Host plants. FABACEAE: Caesalpinioideae: Senna hayesiana (syn for Cassia maxonii), S. oxyphylla (Kunth) Irwin & Barneby, S. macranthera. Diagnosis. Sennius trinotaticollis (subgroup 3) is more similar to S. lebasi (subgroup 3) considering the integument color, pubescenceof elytra and male genitalia. Sennius trinotaticollis has the hinge sclerites longer and less curved than those found in S. lebasi. Furthermore, in S. trinotaticollis the basal region of the internal sac has the groups of large spicules less defined than those of S. lebasi.

FIGURES 92–99. Sennius trinotaticollis. 92, dorsal view; 93, lateral view; 94, head, frontal view; 95, pygidium; 96, part of hind leg, internal view; 97, hind tibia, external view; 98, 99 male genitalia: 98, median lobe with hinge sclerites, others sclerites magnified and latero-basal lobes of internal sac; 99, tegmen.

Sennius vivi sp nov. (Figs 100–107)

Description. Dimension. BL: 1.8–2.4 mm; BW: 1.3–1.6 mm. Integument color. Head, thorax, elytra and pygidium reddish brown to black (Figs 100–103); antennomeres entirely pale brown (Figs 101, 102). Legs red-orange, except external surface of hind femur pale to dark brown (Fig. 101). Pubescence. Head with moderately dense white setae, except for small golden dense patch posterior to post- ocular lobe; labrum with lined golden setae medially, denser apically (Figs 101, 102). Pronotum with sparse black setae, golden and denser on lateral third and in midline. Elytra with white setae in 1st strial interval; pale yellow setae in median region of 2nd strial interval, forming horizontal strip on anterior region of 3rd to 11th interstices and sometimes on subapical region of 7th strial interval, remainder of elytra with brown setae (Fig. 100). Ventral surface with moderately dense white setae, denser on posterior region of metepisternum and on distal region of hind coxa (Fig. 101). Pygidium pale yellow and with golden setae, denser at basal region and on midline (Fig. 103).

530 · Zootaxa 3736 (5) © 2013 Magnolia Press VIANA & RIBEIRO-COSTA. Head with frons slightly convex, frontal carina present and ocular sinus deep, about half length of eye (Fig. 102). Antennomeres 1 and 3 filiform, 2 and 4 moniliform, 5–10 wider than long, 11 globular but pointed apically. Disc of pronotum strongly sulcate at basal lobe. Elytra without denticle at base of strial. Hind femur on ventral margin with very prominent tooth (0.03–0.07 mm), not microserrate (Fig. 104); hind tibia with lateroventral carina not reaching half its length (Fig. 105). Male genitalia. Median lobe strongly sclerotized, about 5.6 times longer than wide medially, apex strongly expanded. Ventral valve triangular with round apex and lateral margins sinuous. Internal sac with hinge sclerites long, moderately curved with apex and base broader; apical region with group of spicules near ventral valve and long and dense group of short spicules continuing on subapical region; subapical region with short and moderately dense group of short spicules; submedian region with two small groups of coarser spicules than those of subapical region and dense denticles on medial region; latero-basal lobes of internal sac with dense and long spicules; basal region with serrate denticles near gonopore (Fig. 106). Tegmen with lateral lobes separated by emargination about 0.9 times their length (Fig. 107).

FIGURES 100–107. Sennius vivi sp. nov. 100, dorsal view; 101, lateral view; 102, head, frontal view; 103, pygidium; 104, part of hind leg, internal view; 105, hind tibia, external view; 106, 107 male genitalia: 106, median lobe with hinge sclerites, others sclerites magnified and latero-basal lobes of internal sac; 107, tegmen.

Material examined. Types (23): Holotype and allotype deposited in DZUP. Holotype labels: “Coleção \ M. Alvarenga”(Light brown) “ARAGARÇAS \ Goiás Brasil \ 23.IX.954 \ Moacir Alvarenga”(Light brown) “HOLOTYPE \ Sennius vivi \ Viana & Ribeiro-Costa”(Red). Allotype labels: “DPTº ZOOL \ UF-PARANÁ”(Light brown) “BAIXO GUANDU-E.STO. \ BRASIL 2–9/I/71 \ Tadeu & C. Elias col. ”(Light brown) “ALLOTYPE \ Sennius vivi \ Viana & Ribeiro-Costa”(Red); 21 paratypes deposited in DZUP, MZSP, MNRJ, TAMU, USNM, FSCA, CEAM and CNCI, lables: BRA: Ceará: 5, “Coleção \ M. Alvarenga”(Light brown) “BARBALHA \ Ceará Brasil/ V-1969 \ M. Alvarenga”(Light brown) “PARATYPE \ Sennius vivi \ Viana & Ribeiro-Costa”(Yellow) (3, DZUP; 1, FSCA; 1, MZSP); Goiás: 1, “Coleção \ M. Alvarenga”(Light brown) “ARAGARÇAS \ Goiás Brasil \ 23.IX.954 \ Moacir Alvarenga”(Light brown) and same paratype label (TAMU); Espírito Santo: 1, “DPTº ZOOL \ UF-PARANÁ”(Light brown) “BAIXO GUANDU-E.STO. \ BRASIL 15–21/X/70 \ Tadeu & C. Elias col.”(Light brown) and same paratype label (MNRJ); 2, “DPTº ZOOL \ UF-PARANÁ”(Light brown) “BAIXO GUANDU-

REVIEW OF THE SENNIUS ABBREVIATUS SPECIES GROUP Zootaxa 3736 (5) © 2013 Magnolia Press · 531 E.STO. \ BRASIL 9–15/XII/70 \ C. Elias leg. ”(Light brown) and same paratype label (1, DZUP; 1, CEAM); Distrito Federal: 1, “Brasília–DF \ 14/4/89 \ C. A. D. Texeira”(Light brown) “162–Ce \ Fedegoso”(Light brown) and same paratype label (CEAM); 1, “Brasília-DF \ 14/4/89 \ C. A. D. Texeira”(Light brown) “163–Ce \ Fedegoso”(Light brown) and same paratype label (MNRJ); 1, “Brasília–DF \ 14/4/89 \ C. A. D. Texeira”(Light brown) “164–Ce \ Fedegoso”(Light brown) and same paratype label (MZSP); 1, “Brasília–DF \ 14/4/89 \ C. A. D. Texeira”(Light brown) “171–Ce \ Fedegoso”(Light brown) and same paratype label (TAMU); 1, “Brasília-DF \ 02/ 5/89 \ C. A. D. Texeira”(Light brown) “277–Ce \ Fedegoso”(Light brown) “Senna obtusifolia”(Light brown) and same paratype label (CNCI); 1, “Brasília-DF \ 10/5/89 \ C. A. D. Texeira”(Light brown) “297–Ce \ Fedegoso”(Light brown) and same paratype label (DZUP); São Paulo: 1, “BRASIL-SP BALSAMO \ DATA, 3/V/ 87 \ SERINGUEIRA \ COL. BERGMANN, E. C. ”(Light brown) “110 \ AL”(Light brown) “Sennius sp. 1 \ C.S. Ribeiro-Costa det. 1991”(Light brown) and same paratype label (FSCA); 1, “BRASIL-SP BALSAMO \ DATA, 3/ IX/87 \ SERINGUEIRA \ COL. BERGMANN, E. C. ”(Light brown) “438 \ BA”(Light brown) and same paratype label (DZUP); 2, “BRASIL-SP BALSAMO \ DATA, 17/IX/87 \ SERINGUEIRA \ COL. BERGMANN, E. C. ”(Light brown) “320 \ AL”(Light brown) and same paratype label at the same pin (USNM); 1, “BRASIL-SP BALSAMO \ DATA, 17/IX/87 \ SERINGUEIRA \ COL. BERGMANN, E. C. ”(Light brown) “352 \ AL”(Light brown) and same paratype label (CNCI); 1, “BRASIL-SP BALSAMO \ DATA, 21/IX/88 \ SERINGUEIRA \ COL. BERGMANN, E. C. ”(Light brown) “2783 \ BB”(Light brown) “Sennius sp. 4 \ C.S. Ribeiro-Costa det. 1991”(Light brown) and same paratype label (DZUP). Distribution. BRA (Ceará, Pernambuco, Goiás, Distrito Federal, Espírito Santo, São Paulo). Host plant. FABACEAE: Caesalpinioideae: Senna obtusifolia (Sicklepod). Diagnosis. Sennius vivi sp. nov. (subgroup 1) is easily distinguished from all other species of the S. abbreviatus group by the color and the pattern of pubescence on the dorsum. The male genitalia is most similar to S. nappi (subgroup 1) in having hinge sclerites long and narrow and a group of spicules on the subapical region of similar size. Sennius vivi sp. nov. differs by the two groups of spicules on the basal region of the internal sac, which is slightly dense, with few shorter spicules, while in S. nappi the spicules of this group are denser and longer. Etymology. The specific name “vivi” is in honor of Dra. Viviane Grenha, for her great professional and personal contribution in instructing J. H. Viana. This is a noun in apposition, gender feminine.

Acknowledgements

We are grateful to the curators listed in the Material and Methods for loans; TAXon line, Rede Paranaense de Coleções Biológicas (UFPR) for the photographs; and the Conselho Nacional de Desenvolvimento Científico and Tecnológico (CNPq) for the scholarships to the authors. Contribution number 1878, Departamento de Zoologia, Universidade Federal do Paraná, Brazil.

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