ISSN 0326-1778 y ISSN 1853-6581

HISTORIA NATURAL Tercera Serie Volumen 7 (1) 2017/85-93

A NEW SPECIES AND NEW RECORDS OF (CASEY, 1912) (COLEOPTERA: CERAMBYCIDAE: : ) FROM ARGENTINA

Una nueva especie y nuevos registros de Megacyllene (Casey, 1912) (Coleoptera: Cerambycidae: Cerambycinae: Clytini) de Argentina

Gastón E. Zubarán 1 y Osvaldo R. Di Iorio 2

1Zuviría 2392, Piso 1 A, San Miguel (1663), Provincia de Buenos Aires, Argentina. [email protected] 2 (1958-2016) Zubarán g. y Di Iorio o.

Abstract. Megacyllene bella n. sp. from Misiones, in northeastern Argentina, is described and illustrated. A new record for Argentina is also given: M. globosa originally described from Brazil. The Argentinean fauna of Megacyllene is compared with adjacent countries, resulting that only six species of the genus remain as endemic in the country. Key words. Cerambycidae, Megacyllene, New species, Systematics, Distribution.

Resumen. Megacyllene bella sp. n. de Misiones, en el noreste de Argentina, se describe e ilustra. También se da un nuevo registro para Argentina: M. globosa, descripta originalmente de Brasil. La fauna argentina de Megacyllene se compara con los países adyacentes, dando como resultado que sólo seis especies del género permanecen como endémicas para el país. Palabras clave. Cerambycidae, Megacyllene, Nueva especie, Sistemática, Distribución.

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INTRODUCTION Misiones / San Pedro / 9-XII-05 / D. Penner leg.” [handwritten by Di Iorio on a white The genus Megacyllene (Casey, 1912) is label inside a black frame], “HOLOTYPUS” represented by 49 species on the Neotropical [printed in black on a red paper”], “Megacyl- region, according to Monné (2015). Di Iorio lene / (Megacyllene) / bella sp. nov. / Zubarán (2006) recognizes 24 species of the genus for and Di Iorio det. 2016” [handwritten by Argentina. In 2011, Aragão and Monné re- Zubarán on red paper]. The Holotype is de- validated to Megacyllene insignita (Perroud, posited in the MACN collection. 1855), synonymized by Di Iorio in 2006 to Megacyllene latreille (Laporte and Cory, Description of holotype specimen. Tegu- 1836). Monné (2015) proposed M. minuta as ment completely black, except for a dark synonym of M. boryi. In the present contri- reddish brown on the antenna (except the bution a new species of Megacyllene is de- scape), two articles distal from the fore scribed and illustrated, and a recently de- tarsi, the underside of the tibiae, trocanters, scribed species of Brazil (Aragão and Monné and the base of the femora. 2011) is a new record in the country, totaliz- Pubescent bands yellow as follows: on the ing 26 species present in Argentina a total of head, bordering the upper internal margin 50 known species in the genus. of ocular lobes, against antennal insertion; another band limiting ocular lower lobes, Institutional abbreviations. MACN, Museo between the front and gena, continuing Argentino de Ciencias Naturales “Bernar- dorsally along the base of the lower ocular dino Rivadavia”, Buenos Aires, Argentina. lobe towards the apex, and then joins the MNRJ, Museu Nacional, Rio de Janeiro, opposite side (Figure 4). Brazil. GZSM, Gastón Zubarán, San Miguel, Five transversal bands on pronotum (Fig- Buenos Aires, Argentina. ODIC, Osvaldo Di ures 1-3): first narrow, against anterior mar- Iorio collection, Buenos Aires, Argentina. gin; second broader than others, in approx- imately 1/3 pronotal length; third narrow, slightly curved backwards, approximately SYSTEMATICS 1/2 of the length pronotal; fourth border- Orden Coleoptera Linnaeus, 1758 ing posterior angles, one at each side, fused Familia Cerambycidae Latreille, 1802 with fifth band; the latter against posterior Megacyllene Casey, 1912 margin and wider in the middle; first and second bands pronotal latero-ventrally Megacyllene bella sp. n. fused with prosternal pubescence (Figure Figures 1-4 3); the lateral margin of the fifth band, lo- cated on the border prothoracic, ends in Diagnosis. Megacyllene bella differs from the polygonal area below the procoxal cav- other species on the basis of the following ity (Figures 1 and 2). combination of characters: large size, black Four transversal bands on elytra (Figures tegument, the pattern of the four yellow 1 and 2): first band, near the anterior mar- bands and thin pubescent elythra. gin, but without touching it; slightly ascen- Etimology. the name makes reference to its dent from a little below the humeri to scu- beautiful and delicate aspect. tellum, continuing from there through the Holotype. Female specimen, labeled “Arg., rear half, with the opposite band, with the

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opposite band; the second, approximately duced in a external apex of each article; half of the length of the elytra, with a small scape longer than antennomere III; anten- sutural spot between the suture and the nomere IV shorter than III; antennomere V elytral carina. The third divided in a small to VII longer than remaining antennomeres portion between the lateral margin and the VIII to XI; antennomere XI fused to XII. carina of the elytra, and a bigger spot be- Prosternal process posteriorly widened, tween elytral carina and suture; IV before with the posterior margin slightly convex. the posterior margin of the elytra, divided by the elytral carina. Holotype measurements. Maximum pro- Prosternum, prosternal process, lateral thorax width (between posterior angles), sides of mesosternum, all mesosternals pro- 4.8 mm; prothorax length, 3.9 mm; maxi- cesses, metaepisternum, 3/4 of each lateral mum elythra width (below humeri), 5.82 half of metasternum covered by a pale yel- mm; elythral length (including apical low pubescence; more dense and yellow spines), 14.04 mm; total length, 20.00 mm. pubescence on the mesoepisternum (except in its anterior margin); three lateral yellow Remarks. The single specimen of M. bella spots on first three visible abdominal ster- was captured running (probably in a ovi- nites; traces of lateral spots in the fourth ab- position behaviour) on felled branches of dominal sternite visible; a longitudinal yel- an undetermined tree, mixed with speci- low spot on the last visible tergite; a small mens of (Germar, 1824) patch of dense pubescence, yellow, on each (D. Penner pers. com.). More research is side of the plate stridulatory mesonotum; needed on this subject, in order to get the a small patch of pale yellow pubescence at male individuals and their host plant. the apical part of the elytral epipleura. Pale whitish pubescence: procoxae, metacoxae, Comparisons. Megacyllene bella differs from femurs and tibias. Anterior and middle tar- all other Argentine species (Di Iorio 2005: sus with golden yellow pads, second and Plates 43-45) for its large size, the black teg- fourth article of hind tarsus with the same ument and the pattern of the four yellow color golden yellow. Black hairs on ventral bands and thin pubescent on the elytra. It side of first article in hind tarsi. also differs in the pattern of pubescent ely- Coarse punctuation on vertex of head be- tra yellow bands, from all other Brazilian hind transverse yellow band; pronotum with species that are not present in Argentina punctuation thin and dense, elytra with the (Aragão and Monné, 2011). same dense and decumbent tiny black hairs. Megacyllene ebenina (Monné and Napp, Anterior margin of pronotum slightly 2004), known only from a single specimen arched forward; lateral margins slightly of Santa Catarina (Brazil), is similar for the and regularly arched, converging ante- black tegument, pronotum and forms of riorly; base of pronotum narrowed, with elytra (except for the absence of pronotal rounded lateral posterior angles (Figures 1 and elytral bands (Napp and Monné, 2004, and 3); elytra with lateral margins progres- Aragão and Monné, 2011)), and only four sively convergent backwards (Figures 1 and yellow spots on the ventral side of the body 2); elytral apex with a strong spine, prolon- (one on each rear half of metaepisternum gation of the elytral carina (Figure 1). and one on each side of the first visible Antennomeres V to X progressively pro- abdominal segment (Monné and Knapp,

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Figure 3 - Detail of the pronotum of Megacyllene bella n. sp. (lateral view).

Figure 1 - Dorsal view of Megacyllene bella n. sp.

Figure 4 - Detail of the head of Megacyllene bella n. sp. Figure 2 - Lateral view of Megacyllene bella n. sp. (anterior view).

2004)). The “male” holotype of M. ebenina, elytra have three bands (instead of four as illustrated by Napp and Monné (2004) and in M. bella), and the first two abdominal Aragão and Monné (2011), appears to be a sternites have lateral spots (compared to female. This prevents the confusion that M. the three sternites in M. bella). bella and M. ebenina belong to a same spe- cies with sexual dimorphism, as in some species of Clytini (but not present in Mega- Megacyllene globosa cyllene yet). Megacyllene bella is also similar (Aragão and Monné, 2011) to M. chalybeata (White, 1855) by the black integument and the pattern of the elytra, Megacyllene boryi (Laporte and Gory, but the latter has two large pubescent yel- 1836), in part: Di Iorio 2006: 3 (distribu- low spots on the pronotum, next to poste- tion). BRAZIL: Paraná: Arapongas, XI- rior angles (absent in M. bella). Pubescent 1951, A. Maller col., 1 male holotype

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[MNRJ] (Aragão and Monné, 2011). DISCUSSION Material examined. ARGENTINA: Misio- nes: Puerto Iguazú, 16-XII-1988, ex Col. D. From 50 species known for Megacyllene, Dauber, 1 female [DIOC]. 26 species are present in Argentina (Table 1). Remarks. The specimen, previously iden- From this total species present in the country, tified as “bonplandi?” and “ellifranziana” 1 is probably shared with Chile, 8 with Bo- (Fuchs, 1961), by Diethard Dauber, was livia, 12 with Paraguay, 16 with Brazil, and included with scepticism among those 10 with Uruguay (Table 1). Therefore, only referred as Megacyllene boryi by Di Iorio six species remain endemic in Argentina: M. (2006). bella n.sp., M. castroi, M. rotundicollis, M. ru- Except for the black prothorax (the ely- fofemorata, M. tafivallensis, and M. trifasciata tra, abdomen and legs are reddish brown), (Table 1). it description and illustration matches with About the distribution of Argentinean spe- M. globosa described by Aragão and Monné cies of Megacyllene per provinces, Misiones (2011). Thus, this constitutes a new country has the highest number (13 species), followed record. by Salta, Tucumán and Entre Ríos (with 11

CHI BOL BRA PAR ARG URU Table 1 - Species of Me- M. acuta (Germar, 1821) - X X X X X gacyllene from Argentina M. anacantha (Chevrolat, 1862) - - X X X - and adjacent countries. M. bella Zubarán & Di Iorio sp. n - - - - N - References: N, new re- M. bonplandi (Gounelle, 1911) - - X P X - cord; P, probable record; M. boryi (Laporte & Gory, 1836) X - X X X X X, mentioned in literatu- M. castanea (Laporte & Gory, 1836) - - X X X P re. Species mentioned M. castroi (Prosen, 1947) - - - - X - only from Bolivia and M. falsa (Chevrolat, 1862) - - X X X X Brazil (endemic) are not M. globosa Aragão & Monné, 2011 - - X P N - included here, thus the M. guarani Aragão & Monné, 2011 - - - X P - number of species in M. hoffmanni (Laporte & Gory, 1836) - - X X P - these countries may be M. insignita (Perroud, 1855) - - X - X X underestimated. M. latreillei (Laporte & Gory, 1836) - - X - X P M. magna Di Iorio, 1997 - X - - X - M. mellyi (Chevrolat, 1862) - X X X X X M. multiguttata (Burmeister, 1865) - X - X X - M. murina (Burmeister, 1879) - - - X X X M. neblinosa Di Iorio, 1995 - X X P X - M. nebulosa (Laporte & Gory, 1836) X ? X X X X X M. proxima (Laporte & Gory, 1836) - X X X X P M. quinquefasciata (Melzer, 1931) X X - - X - M. rotundicollis Zajciw, 1963 - - - - X - M. rufipes (Laporte & Gory, 1836) - - X P X X M. rufofemorata Di Iorio, 1997 - - - - X - M. spixi (Laporte & Gory, 1836) - - X X X X M. tafivallensis Di Iorio, 1998 - - - - X - M. trifasciata Viana, 1994 - - - - X - M. unicolor Fuchs, 1955 - - X X X X Total spp. per country 1 8 16 13 25 10 Probable new records - - - 4 2 3 Dubious record 1 - - - - - New records - - - - 2 -

90 HISTORIA NATURAL Tercera Serie Volumen 7 (1) 2017/85-93 A new species of Megacyllene

------SC

------X X 2 CH

3

------X X 2 RN Southern

------Ne

------X X X X X X X X X 9 1 P BA

R ------X X X X X X X X X X X 1 P 11 E

19

------X X X X X X X X X 9 3 P P P Co Eastern

3 ------X X X X X X X X X X X 1 P N N Mi 1

------X X X X X 5 3 P P P SF

------6 X X X 3 4 P P P P Ch

------X 1 4 Northeastern P P P P Fo

------X X 2 1 P LP

------X X X X X X 6 1 P SL

9

------X X X X X X X X 8 1 P Central Cb

------X X X X X 5 2 P P SE

------X X X X 4 Me

------X 1 2 P P SJ

western

10

------X X X X 4 1 P LR

Central

------X X X X X X X X X X Ca 10

------X X X X X X X X X X X 1 P Tu 11

------X X X X X X X X X X X Sa 11 14

------X 1 1 P Ju Northwestern

from Argentinian regions and provinces. References: X, mentioned in literature; N, new records; P, probable presence. X, mentioned in literature; N, new records; P, from Argentinian regions and provinces. References:

region

65) n.

province

per

836)

sp.

per

1998 spp. spp.

(Melzer, 1931)

Di Iorio Iorio Di

Total Total & Di Iorio, 1997 Iorio, Di

Probable new recordsProbable new Zajciw, 1963 (Burmeister, 18 Di Iorio,Di Total Total (Chevrolat, 1862) (Gounelle, 1911) Viana, 1994 Di Iorio, 1995 Iorio, Di (Laporte & Gory, 1836) (Laporte Gory, & (Laporte & Gory, 1836) (Laporte Gory, & (Perroud, 1855) Fuchs, 1955 Fuchs, (Laporte & Gory, 1836) (Laporte Gory, & Aragão & Monné, 2011Aragão & (Laporte 1836) Gory, & (Burmeister, 1879) (Laporte 1836) Gory, & (Prosen, 1947) (Prosen, 1997 Iorio, Di (Chevrolat, 1862) (Germar, 1821) (Laporte & Gory, 1 (Laporte Gory, & Zubarán (Chevrolat, 1862) (Laporte 1836) Gory, &

boryi rufipes

Table 2 - Species of Megacyllene Table . M. acuta M. acuta M. anacantha M. bella M. bonplandi M M. castanea M. castroi M. falsa M. globosa M. insignita M. latreillei M. magna M. mellyi M. multiguttata M. murina M. neblinosa M. nebulosa M. proxima M. quinquefasciata M. rotundicollis M. M. rufofemorata M. spixi M. tafivallensis M. trifasciata M. unicolor

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species), and Catamarca (10 species). synonymies, and records of Clytini (Coleop- The rest has less than 10 species per prov- tera: Cerambycidae). Insecta Mundi, 12: 5-14. Di Iorio, O.R. 2004. Aporte al catálogo de Cer- ince (Table 2). Probably, these numbers ambycidae del Paraguay (Insecta - Coleop- would increase in future records between tera). Parte IV. Addenda a Bosq (Partes I y II) contiguous provinces (Table 2). y Viana (Parte III). Boletín del Museo Nacional In this sense, and based on Table 2, Jujuy, de Historia Natural del Paraguay, 15: 9-65. San Juan and Formosa are the provinces Di Iorio, O.R. 2005. A field guide of the long- horned (Coleoptera: Cerambycidae) with less Megacyllene records. from Argentina. Esteban Abadie and Pablo Wagner (Coordinators). Buenos Aires, 192 pp. Di Iorio, O.R. 2006. New records, synonymies and a new species of Clytini from South ACKNOWLEDGMENTS America (Coleoptera: Cerambycidae: Cer- ambycinae). Les Cahiers Magellanes, 58: 1-28. To Daniel Penner (Germany) for the ces- Fuchs, E. 1961a Zwei neue Cyllene-Arten aus sion of the single specimen of the new spe- der Sammlung des Senckenberg-Museums. cies of Megacyllene. To Fernando Penco for Senckenbergiana Biologica, 42(5-6): 447-450. Fuchs, E. 1961b. Neue Cerambyciden aus Süd- his help to complete this work. brasilien. Pesquisas, Zoologia, 12: 1-10. Germar, E.F. 1824. Insectorum species novae aut minus cognitae, descriptionibus illustratae.Hen- REFERENCES del and Sons, Halae, 624 pp. Laporte, F.L.N. and Gory, H.L. 1836, Monogra- phie du genre . In: Histoire Naturelle Aragão, A.C. and Monné, M.A. 2011. O gênero et iconographie des insectes coléoptères, Megacyllene s. str. Casey (Coleoptera, Cer- publié par monographies séparées.Duménil, ambycidae) na Mata Atlântica: descrição de Paris, 124 pp. duas espécies inéditas, chave para identifi- Monné, M.A. 2015. Catalogue of the Cerambyci- cação e novas ocorrências. Revista Brasileira dae (Coleoptera) of the Neotropical Region. de Entomologia, 55: 159-171. Part I. Subfamily Cerambycinae. Available Bosq, J.M. 1945. Longicornios del Paraguay cap- from cerambyxcat.com/Part1_Cerambyci- turados por los padres Bridarolli y Williner. nae. Revista argentina de Zoogeografía, 5: 45-54. Monné, M.A. and Napp, D.S. 2004. Megacyllene Bosq, J.M. 1947. Catálogo preliminario de los Casey (Coleoptera, Cerambycidae): novas si- coleópteros de Paraguay. Parte III. Superfa- nonímias e descrição de uma nova espécie. milia Cerambycoidea. Entrega 2. Familia Ce- Revista Brasileira de Entomología, 48: 323-324. rambycidae. Revista de la Sociedad Científica Perroud, B.P. 1855. Description de quelques es- de Paraguay, 7: 11-17. pèces nouvelles ou peu connus et création de Casey, T.L. 1912. Studies on the Longicornia of quelques nouveaux genres dans la famille North America. Memoirs on the Coleoptera, 3: des longicornes. Annales de la Société Linnée- 215-376. nne de Lyon, 2 : 327-401. Di Iorio, O.R. 1995. The Argentine species of the Prosen, A.F. 1947. Nuevos cerambícidos argenti- genus Megacyllene Casey,1912 (Coleoptera: nos (Col., Cerambycidae). Revista de la Socie- Cerambycidae), with description of a new dad Entomológica Argentina, 13: 254-257. species. Insecta Mundi, 9: 317-328. Tavakilian, G. and Chevillotte, H. 2016. TITAN: Di Iorio, O.R. 1997. Neotropical species of the Cerambycidae database (version Apr 2015). genus Megacyllene (s.str.) Casey, 1912 (Cole- In: Species 2000 and ITIS Catalogue of Life, optera: Cerambycidae: Cerambycinae: Cly- 28th September 2016. Digital resource at tini), with descriptions of two new species www.catalogueoflife.org/col. Species 2000: from Argentina. Giornale italiano di Entomo- Naturalis, Leiden, the Netherlands. logia, 8: 383-398. Viana, M.J. 1972. Aporte al catálogo de Ceram- Di Iorio, O.R. 1998. New species, combinations, bycidae del Paraguay (Insecta, Coleoptera).

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Revista del Museo de Ciencias Naturales “Ber- Zajciw, D. 1963. Novos longicórneos neotrópi- nardino Rivadavia”, Serie Entomología, 3: 207- cos da tribo Clytini (Col., Cerambycidae, Ce- 405. rambycinae). Revista Brasileira de Biologia, 23: White, A. 1855. Catalogue of the coleopterous in- 171-179. sects in the collection of the British Museum. Longicornia 2. British Museum, London, 8: 175-412.

Recibido: 29/05/2016 - Aceptado: 19/10/2016 - Publicado: 27/03/2017

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