Triomicrus mirus Shen and Yin

Shen, Jia-Wei & Yin, Zi-Wei, 2016, The genus Triomicrus Sharp from central and southwestern China (Coleoptera: Staphylinidae: Pselaphinae), and a revised key to the Chinese species, Zootaxa 4097 (3), pp. 369-380 : 375-376

Triomicrus mirus Shen and Yin

( Fig. 6 )

Triomicrus mirus Shen and Yin, 2015: 522 .

Additional material examined. 8 ♂♂, 4 ♀♀, labeled ‘ China: Hunan, Liuyang City, Daweishan Town (大围山镇), Dawei shan (大围山), 28°25’37’’N, 114°07’03’’E, mixed leaf litter, sifted, 1440 m, 21.vii.2013, Peng, Dai & Xie leg.’ ( SNUC).

Comments. Males of this species can be easily separated from those of all other congeners by a combination of the following characters: antennomeres XI enlarged, with impression near middle ( Fig. 6 B, 6C); abdominal sternite VII with apical lamina ( Fig. 6 D) composed of two sclerites, left one curved mesally, widest near base, obliquely narrowing toward bifurcate apex, with a tiny horn-like projection at the middle, right one elongate, curved mesally at apex. This species was originally described from the Yaoluoping Natural Reserve, here we record it also from the Dawei Mountain. Illustrations of sternite VII ( Fig. 6 D) and the aedeagus ( Fig. 6 E) are provided here.

Distribution. Eastern China: Anhui; central China: Hunan (new provincial record).

Figures

FIGURE 6. Diagnostic characters of male Triomicrus mirus. A. Habitus. B. Antennal club, in dorsal view. C. Same, in lateral view. D. Abdominal sternites VII – VIII. E. Aedeagus, in dorsal view. Scale bars: A = 0.5 mm; B, C = 0.2 mm; D, E = 0.1 mm.