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Five New Species of Antilochus Stål, 1863 from the Old World (Heteroptera: Pyrrhocoridae)

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Five New Species of Antilochus Stål, 1863 from the Old World (Heteroptera: Pyrrhocoridae) ISSN 1211-8788 Acta Musei Moraviae, Scientiae biologicae (Brno) 94: 57–71, 2009 Five new species of Antilochus Stål, 1863 from the Old World (Heteroptera: Pyrrhocoridae) JAROSLAV L. STEHLÍK Department of Entomology, Moravian Museum, Hviezdoslavova 29a, CZ-627 00 Brno-Slatina, Czech Republic STEHLÍK J. L. 2009: Five new species of Antilochus Stål, 1863 from the Old World (Heteroptera: Pyrrhocoridae). Acta Musei Moraviae, Scientiae biologicae (Brno) 94: 57–71. – A new subgenus and five new species of the genus Antilochus Stål, 1863 are described, namely Afroantilochus subgen.nov., Antilochus (Antilochus) angustus sp.nov. (Indonesia: Buton Island), Antilochus (Antilochus) sulawesiensis sp.nov. (Indonesia: Sulawesi), Antilochus (Antilochus) webbi sp.nov. (southern India), Antilochus (Afroantilochus) kmenti sp.nov. (Angola, Burundi, Democratic Republic of the Congo, Tanzania), Antilochus (Afroantilochus) similis sp.nov. (Côte d’Ivoire, Democratic Republic of the Congo, Cameroon, Uganda). Keywords. Heteroptera, Pyrrhocoridae, Antilochus, new subgenus, new species, distribution, Afrotropical Region, Oriental Region Introduction Antilochus Stål, 1863 includes 23 described species to date. They are conspicuously large and often colourful bugs distributed in the Afrotropical, Oriental and Australian Regions (HUSSEY 1929, BLÖTE 1932, SCHMIDT 1932, STEHLÍK 2005). The Afrotropical species and the Oriental/Australian species form two distinct groups that may be distinguished by the morphology of the pronotal collar. The Afrotropical species-group is established here as the distinct subgenus Afroantilochus subgen.nov. In addition, five new Antilochus species are described from tropical Africa, India, and Indonesia. Material and methods The morphological terminology largely follows VAN DOESBURG (1968), but for the pygophore the more specific terms proposed by SCHAEFER (1977) are employed. The measurements are presented as means followed by minimum and maximum values in parentheses. For citation of the label data of type specimens, a double slash (//) is used to indicate data on different labels, the abbreviation “hw” stands for handwritten and “p” for printed, and the author’s comments are given in square brackets [ ]. The names of provinces of the Democratic Republic of the Congo are given according to the revised system of organisation imposed in 2006. 57 J. L. STEHLÍK The material is deposited in the following collections: AMNH . American Museum of Natural History, New York, USA BMNH . The Natural History Museum, London, United Kingdom DEIC . Deutsches Entomologisches Institut, Münchenberg, Germany ISNB . Institut Royal des Sciences Naturelles de Belgique, Brussels, Belgium MMBC . Moravian Museum, Brno, Czech Republic MNHN . Muséum National d’Histoire Naturelle, Paris, France MRAC . Musée Royal de l’Afrique Centrale, Tervuren, Belgium NMPC . National Museum, Praha, Czech Republic PPUA . Czech University of Agriculture, Department of Plant Protection, Prague, Czech Republic ZJPC . Zdenìk Jindra private collection, Prague, Czech Republic ZMAS . Zoological Institute, Russian Academy of Sciences, St. Petersburg, Russia ZMHB . Zoologisches Museum, Humboldt University, Berlin, Germany Results Antilochus Stål, 1863 Antilochus Stål, 1863: 393. Type species: Lygaeus coquebertii Fabricius, 1803 Diagnosis. This genus differs from all other Pyrrhocoridae in the ventral rim of the pygophore being folded over the genital chamber, medially strongly elongated and bifid. The parameres have a rather complicated structure. The base is very wide and there is a large, flat protuberance, usually widely falciform, projecting from the paramere body near the base. At approximately one-third of its length, the paramere is arcuately bent and the paramere body afterwards extends towards the dorsal rim. Ventrite VII is strongly elongated in females, completely covering the external female genitalia (exceptionally only partially). Subgeneric division. The genus Antilochus is here divided into two distinct groups, morphologically and geographically delimited, and classified as subgenera: 1 Pronotal collar convex, distinctly delimited from callar lobe, covered with denser and deeper punctures, and unicolorous. Oriental and Australian Regions. ....................................................... Antilochus s.str. – Pronotal collar flat, punctures weak, usually bicolorous – anteriorly white, posteriorly black (in the median incision of callar lobe) (Figs 5–8), only in A. distantii (Reuter, 1887) unicolorous. Afrotropical Region. ...... .................................................................... Afroantilochus subgen.nov. 58 Acta Mus. Moraviae, Sci. Biol. (Brno), 94, 2009 New species of Antilochus Stål, 1863 Antilochus s. str. Species included. This subgenus currently includes 21 species, including three newly described: Antilochus (Antilochus) amorosus Breddin, 1909 Antilochus (Antilochus) angulifer (Walker, 1873) Antilochus (Antilochus) angustus sp.nov. Antilochus (Antilochus) astridae Schouteden, 1933 Antilochus (Antilochus) bicolor Lethierry, 1888 Antilochus (Antilochus) coloratus (Walker, 1872) Antilochus (Antilochus) coquebertii (Fabricius, 1803) Antilochus (Antilochus) discifer Stål, 1863 Antilochus (Antilochus) discoidalis (Burmeister, 1834) Antilochus (Antilochus) grelaki Schmidt, 1932 Antilochus (Antilochus) histrionicus Stål, 1863 Antilochus (Antilochus) immundulus Breddin, 1901 Antilochus (Antilochus) kubani Stehlík, 2005 Antilochus (Antilochus) latiusculus Blöte, 1932 Antilochus (Antilochus) lineatipes (Stål, 1858) Antilochus (Antilochus) maximus Breddin, 1900 Antilochus (Antilochus) nigripes (Burmeister, 1835) Antilochus (Antilochus) reflexus Stål, 1863 Antilochus (Antilochus) russus Stål, 1863 Antilochus (Antilochus) sulawesiensis sp.nov. Antilochus (Antilochus) webbi sp.nov. Afroantilochus subgen.nov. Type species. Lygaeus boerhaviae Fabricius, 1794, here designated. Diagnosis. Pronotal collar flat, weakly punctured, usually bicolorous (proximally white, distally in the median incision of callar lobe black), only in A. distantii unicolorous. Species included. This subgenus includes 6 species, including two newly described: Antilochus (Afroantilochus) boerhaviae (Fabricius, 1794) Antilochus (Afroantilochus) distantii (Reuter, 1887) Antilochus (Afroantilochus) kmenti sp.nov. Antilochus (Afroantilochus) nigrocruciatus (Stål, 1855) Antilochus (Afroantilochus) similis sp.nov. ? Antilochus (Afroantilochus) violaceus (Carlini, 1892) Acta Mus. Moraviae, Sci. Biol. (Brno), 94, 2009 59 J. L. STEHLÍK Figs 1–7. 1 – Antilochus (s.str.) angustus sp.nov. ♂, holotype; 2 – A. (s.str.) sulawesiensis sp.nov. ♂, paratype; 3 – A. (s.str.) webbi sp.nov. ♂, holotype; 4 – A. (s.str.) russus Stål, 1863 ♂; 5 – A. (Afroantilochus) kmenti sp.nov. ♀, paratype, colour form; 6 – A. (Afroantilochus) similis sp.nov. ♂, holotype; 7 – A. (Afroantilochus) boerhaviae (Fabricius, 1794) ♂. 60 Acta Mus. Moraviae, Sci. Biol. (Brno), 94, 2009 New species of Antilochus Stål, 1863 Note. Antilochus distantii from Madagascar could be included in Afroantilochus subgen.nov. in that the pronotal collar is only slightly convex and it lacks the dense, deep punctures typical of the nominotypical subgenus. However, it differs from the other species from the Afrotropical mainland in pronotal collar unicolorous, of the same colour as the entire body (yellowish or black); only to the extent that the black coloration of the callar lobe extends onto its lateral margin is the pronotal collar bicolorous. I have never examined A. violaceus, but, judging by the original description, it could be included in Afroantilochus subgen.nov. Antilochus bipunctatus (Signoret, 1861) (subgenus incertae sedis) Note. Unfortunately, this species from Mayotte Island is unknown to me and the original description does not allow it to be assigned to any of the subgenera. Descriptions of new species Antilochus (Antilochus) angustus sp.nov. (Figs 1, 9) Type material. Holotype: ♂, Indonesia: Sulawesi Tenggara Province: “Buton Island, South Lasalimu region, vii.2005, local collector lgt.” (PPUA). Paratypes: 2 ♀♀, the same data as holotype (ZJPC). Description. Coloration (Fig. 1). Red, antennae, apex of labium, callar lobe, scutellum, membrane, apices of femora, tibiae, tarsi, furrows emarginating pleuron I black. Furrows emarginating pleura II and III, as well as the anterior bands on ventrites II–VII (medially somewhat narrowed) also black, but less deeply so. Structure. Body slender. Ventral surface of profemora with 1–3 small denticles in the apical part. Pygophore (Fig. 9) very small (length 2.6 mm, width 2.38 mm). Median folded part of ventral rim above genital chamber at the same base flatly interrupted, then strongly convex, apical part flat, somewhat narrowed before apex. Parameres exposed, at half- length coming through round apertures in both ventral rim and ventral rim infolding, which is parallel to apical part of ventral rim. Paramere before apex strongly bent outwards. Span of the denticles at paramere apex large (0.43 mm). Ventrite VI of females medially without distinct incision; ventrite VII shorter (2.81 mm), not elongated into a tip, medially with only very slightly indicated vertical ridge, with one rounded depression along each side of this ridge. Measurements (mm). Male (holotype). Body length 15.35; head: width (including eyes) 2.13, interocular width 1.03; length of antennomeres: 1 – 2.65, 2 – 2.78, 3 – 2.32, 4 – 3.64; pronotum: length 3.35, width 4.59; scutellum: length 2.05, width 2.43; corium:
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