Colilodion tetramerus Löbl, 1998

Yin, Zi-Wei, Song, Xiao-Bin & Chen, Jia-Wei, 2023, A second specimen of Colilodion tetramerus Löbl (Coleoptera: Staphylinidae: Pselaphinae), Zootaxa 5353 (4), pp. 393-394 : 393-394

Colilodion tetramerus Löbl, 1998 ( Fig. 1 )

Colilodion tetramerus Löbl, 1998: 467 . Type locality: China, Hainan, Ba Wang Ling N. R., 1000 m.

Material examined. 1 ex., ‘ China: Hainan, Lingshui Co., Diaoluoshan N. R., 18°43’39”N, 109°51’55”E, 950 m, 5.viii.2023 , leaf litter, Berlese funnel, Xiao-Bin Song leg., [DZẾBƔƜ]’ ( SNUC) .

Comments. The specimen ( Fig. 1A ) is undoubtedly conspecific with the population of Bawanglin based on the identical four-segmented antennae, large sensilla of the antennomeres 4 ( Fig. 1B ), and remaining external characters. The only other species showing a similar morphology is C. thienmu Nomura & Sugaya from central Vietnam, which also has four segments on each antenna. However, the latter species has more rounded lateral margins of the head, the antennomeres 4 are much more curved near the bases, and the apical sensilla of antennomeres 4 are much less pronounced.

Distribution. Southern China: Hainan ( Fig. 1C ).

Figures

FIGURE 1. Colilodion tetramerus. A. Habitus. B. Apex of antenna, showing sensillum. C. Distribution; circle—known distribution, square—new record. Scale bar: 0.5 mm.