Silusa sichuanensis, Assing, 2011

Assing, V., 2011, Six new species and additional records of Aleocharinae from China (Coleoptera: Staphylinidae: Aleocharinae), Linzer biologische Beiträge 43 (1), pp. 291-310 : 292

Silusa sichuanensis PACE 2004 ( Figs 1-6 )

T y p e m a t e r i a l e x a m i n e d Holotype: " China: W Sichuan, 20 km N Sabdê, 3200 m, 29°35N 102°23'E, 15.VII.1998, A. Smetana [C83 / 1998 China Expedition, J. Farka \, D. Král, J. Schneider & A. Smetana / Holotypus Silusa sichuanensis m. det. R. Pace 1999 / Silusa sichuanensis sp. n. det. R. Pace 1999" ( MHNG). A d d i t i o n a l m a t e r i a l e x a m i n e d: China:1, 1, N-Yunnan, Zhongdian Co.,

48 km N Zhongdian, 28°16.6'N, 9°45.7'E, 3220 m, creek valley, devastated primary forest, dead

wood, moss, mushrooms, 21.VIII.2003, leg. M. Schülke (cSch, cAss).

C o m m e n t: According to the original description, which is based on a male holo- type and eight paratypes from "West Sichuan, 20 km N Sabdê " ( PACE 2004a), the body length is 2.9 mm. An examination of the holotype and the above material from Yunnan, however, revealed that the species is distinctly larger (3.5-4.0 mm). Also , the pronotum has a coarsely punctate transverse impression posteriorly (neither mentioned nor illustrated in the original description of S. sichuanensis ), and the coloration is rather different: head blackish ; pronotum brown with narrowly yellowish margins; elytra yellowish, with the region behind scutellum and the postero-lateral angles extensively infuscate (brown); abdomen reddish, with the median portion of tergites III-IV, most of tergites V-VI, and anterior half of tergite VII blackish; legs and maxillary palpi yellowish; antennae brown, with the basal three antennomeres reddish. For illustrations of the material from Yunnan see Figs 1-6 .

Figures

Figs 1-6: Silusa sichuanensis PACE (Yunnan): (1) habitus; (2) forebody; (3) male tergite VIII; (4) male sternite VIII; (5) median lobe of aedeagus in lateral view; (6) spermatheca. Scale bars: 1: 1.0 mm; 2: 0.5 mm; 3-4: 0.2 mm; 5-6: 0.1 mm.