Triomicrus cf. punctifrons, Löbl, Kurbatov & Nomura, 1998

Shen, Jia-Wei, Yin, Zi-Wei & Li, Li-Zhen, 2015, Six new species of Triomicrus Sharp from southern China (Coleoptera: Staphylinidae: Pselaphinae), Zootaxa 4044 (4), pp. 585-595 : 593-594

Triomicrus cf. punctifrons, Löbl, Kurbatov & Nomura, 1998

( Fig. 7 )

Material examined. (10 ♂♂, 26 ♀♀). 3 ♂♂, 26 ♀♀, labeled ‘ China: Guangxi, Xing’an County (※aeA), Mao'er Shan (aAM), 25°52’27’’N, 110°24’44’’E, beech forest, mixed leaf litter, humus, sifted, 1940 m, 29.vii.2014, Peng, Song, Yu & Yan leg.’ ( SNUC); 1 ♂, also from Mao'er Shan, 25°53’20’’N, 110°25’53’’E, 2000–2100 m, mixed litter, sifted, 22.vii.2012, Hu & Song leg.’ ( SNUC); 1 ♂, also from Mao'er Shan, 25°52’31’’N, 110°24’54’’E, 1950–2000 m, mixed litter, sifted, 23.vii.2012, Hu & Song leg.’ ( SNUC); 3 ♂♂, also from Mao'er Shan, ‘ 11.vii.2011, 2000 m, W.J. He & L. Tang leg.’ ( SNUC); 2 ♂♂, labeled ‘ China: Guangxi, Wuming County (AdA), Daming shan (⋏℉M), 23°28’44’’N, 108°26’06’’E, mixed leaf litter, sifted, 1500 m, 29.vii.2012, Jia-Yao Hu leg.’ ( SNUC).

Remarks. Males of the population from Guangxi ( Fig. 7 A) have the antennomere XI with moderately prominent disc-like protuberance near base, protibiae with a small apical protuberance ( Fig. 7 D), the mesotibia with a curved apical protuberance ( Fig. 7 E), the abdominal sternite VII are modified ( Fig. 7 F, 7G), with the apical lamina transverse, pointed at apex of lateral margin. and the aedeagus with the right paramere curved mesally, the internal sac bearing many small sclerotized spines, lacking a hairy sclerite. All these characters are similar to those of T. punctifrons Löbl, Kurbatov & Nomura, 1998 , but considering of the large distributional disjunction of these two population (ca. 960 km), the identity of the specimens from Guangxi remains uncertain, pending a future examination of the male type specimen of T. punctifrons .

Figures

FIGURE 7. Diagnostic characters of Triomicrus cf. punctifrons, male. A. Male habitus. B. Antennal club, in dorsal view. C. Same, in lateral view. D. Protibia in dorsal view. E. Mesotibia in dorsal view. F. Abdominal sternites VII – VIII (population from Mao'er Shan). G. Same (population from Daming Shan). H. Aedeagus, in dorsal view (population from Mao'er Shan). I. Same (population from Daming Shan). Scale bars: A = 0.5 mm; B, C = 0.2 mm; D – I = 0.1 mm.