Sinotrisus nomurai Yin, Li & Zhao

Yin, Zi-Wei, Nomura, Shuhei & Li, Li-Zhen, 2012, A taxonomic revision of the genus Sinotrisus Yin & Li (Coleoptera, Staphylinidae, Pselaphinae), ZooKeys 205, pp. 45-57 : 49-52

Sinotrisus nomurai Yin, Li & Zhao Fig. 3

Sinotrisus nomurai Yin, Li & Zhao, 2010: 251.

Type material examined.

Holotype, male, labeled 'China: Zhejiang Prov. / W. Tianmushan Mt. / firebreak / 01.v.2009, 1,400 m / Xiao-Bing SONG leg. // HOLOTYPE [red] / Sinotrisus nomurai sp. n. / Yin and Li / det. 2010, SNUC’. Paratype, male, same label data as holotype, with the following label: 'PARATYPE [yellow] / Sinotrisus nomurai sp. n. / Yin and Li / det. 2012, SNUC’.

Diagnosis.

Vertex modified in the male. Antennomeres VII transverse. Pronotum lacking spines along discal ridges; basolateral foveae broad. Mesotibiae with one tiny and one long apical spur.

Redescription.

Male. Length 3.30. Head (Fig. 3A) wider than long, HL 0.57, HW 0.71; surface convex anterior and posterior to vertexal foveae, forming median angulate projection; with distinct occipital carinae; postocular margins evenly narrowed toward head base; antennomeres IV (Fig. 3B) smaller than VI, IX–X transverse, XI nearly oval, clubs indistinct. Pronotum about as long as wide, PL 0.66, PW 0.68; mediobasal impression longitudinally oval, lacking median antebasal fovea; paranotal carinae extending through length of prosternum. Elytra slightly wider than long, EL 1.06, EW 1.18; angulate at humeri. Mesotrochanters (Fig. 3C) with long ventral spine slightly curved toward base in apical half; mesotibiae with apical spur (Fig. 3D) longer than first tarsomeres; metatrochanters (Fig. 3E) with blunt triangular tubercle and large elongate protuberance at ventral side. Abdomen slightly wider than long, AL 0.96, AW 1.08; tergites and sternites V–VII with basolateral ridges successively shorter and thinner. Aedeagus (Figs 3 F–I) well-sclerotized, length 0.42.

Female. Unknown.

Distribution.

East China: Zhejiang.

Host ant.

Lasius sp.