Sinotrisus kishimotoi
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Ordo: Coleoptera
Familia: Staphylinidae
Genus: Sinotrisus
Name
Sinotrisus kishimotoi Yin & Nomura sp. n. – Wikispecies link – ZooBank link – Pensoft Profile
Type material
Holotype, male, labeled ‘Huangmaogeng Yakou / (2,710 m). Tianxi Xiang / Meigu Xian // [Sichuan, China] / [same locality data in Chinese] / 5.x.1997, T. kishimoto // HOLOTYPE [red] / Sinotrisus kishimotoi sp. n. / Yin and Nomura / det. 2012, NSMT’. Paratypes, 3 females, same label data as holotype, all bearing the following label: ‘PARATYPE [yellow] / Sinotrisus kishimotoi sp. n. / Yin and Nomura / det. 2012, NSMT’.
Diagnosis
Vertex strongly modified in male. Antennomeres VII slightly elongate. Pronotum with minute spines along discal ridges; basolateral foveae small. Mesotibiae with apical spur longer than first tarsomeres.
Description
Male (Fig. 1A). Length 3.07. Head (Fig. 2A) slightly wider than long, HL 0.58, HW 0.65; vertex with deep cavity surrounding median triangular rostrum, anterior margin of cavity and posterior margin of rostrum edged by thickened ridge, cavity with tufts of setae at anterolateral margins, surface of rostrum densely setose, rostrum followed by short median carina; each eye composed of about 60 facets; lacking obvious occipital carinae; postocular margins evenly narrowed toward head base; antennomeres IV (Fig. 2B) subequal in length to VI, IX–XI enlarged to form distinct club. Pronotum about as long as wide, PL 0.64, PW 0.63; small median antebasal fovea in fusiform mediobasal impression; paranotal carinae extending half length of prosternum. Elytra slightly wider than long, EL 1.01, EW 1.16; slightly angulate at humeri. Mesotrochanters (Fig. 2C) with short, thick ventral spine; mesotibiae with apical spur (Fig. 2D) longer than first tarsomeres; metatrochanters (Fig. 2E) with broad, blunt elongate protuberance at ventral side. Abdomen wider than long, AL 0.84, AW 1.03; sternites IV with small triangular mediobasal ridge, V–VII with such ridge successively smaller. Aedeagus (Figs 2F–I) well-sclerotized, length 0.38.
Female (Fig. 1B). Similar to male in general, vertex and legs not modified. BL 3.05–3.12, HL 0.59–0.60, HW 0.67–0.68, PL 0.66–0.67, PW 0.64–0.66, EL 0.97–0.99, EW 1.16–1.18, AL 0.83–0.86, AW 1.07–1.10. Each eye composed of about 55 facets. Genital complex well-sclerotized (Figs 2J–K).
Distribution
SouthwestChina: Sichuan.
Host ant
Formica sp.
Etymology
Named after the collector of the holotype, T. kishimoto.
Original Description
- Yin, Z; Nomura, S; Li, L; 2012: A taxonomic revision of the genus Sinotrisus Yin & Li (Coleoptera, Staphylinidae, Pselaphinae) ZooKeys, 205: 45-57. doi
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