Brachytrycherus curviantennae Chang, Bi & Ren, 2016

Chang, Ling-Xiao, Bi, Wen-Xuan & Ren, Guo-Dong, 2019, A review of the genus Brachytrycherus Arrow (Coleoptera, Endomychidae) of mainland China with descriptions of three new species, ZooKeys 880, pp. 85-112 : 85

Brachytrycherus curviantennae Chang, Bi & Ren, 2016 Figs 15 , 16A, C

Brachytrycherus curviantennae Chang et al., 2016: 139.

Diagnosis.

Brachytrycherus curviantennae is similar to B. humeralis and B. denticulatus sp. nov. in both bodies being broadly oval, elytral maculae transverse, pronotum sides strongly curved. However, antennomere 3 distinctly curved outwards and elytral maculae nearly cymbiform can distinguish B. curviantennae from all its congeners.

Length.

8.5-9.4 mm; width: 5.1-5.2 mm.

Type material.

Holotype, male, Xizang, Medog, 1500 m, 20.VIII.2013, Wen-Xuan Bi leg. (SHEM). Paratypes, 1 female, Xizang, Medgo, Beibeng, Gelincun, 3.VIII.2014, Wen-Xuan Bi leg. (MHBU); 1 female, Xizang, Medgo, Beibeng, Gelincun, 3.VIII.2014, Wen-Xuan Bi leg. (CBWX).

Type locality.

China (Xizang).

Distribution.

China (Xizang).

Biology and ecology.

The male was hand collected by simple searching, as it is active on branches at night ( Fig. 16C ). Two females were collected by shaking the tree from a large clump of dead wood of Fagaceae plants ( Fig. 16A ) ( Chang et al. 2016).

Figures

Figure 15. Type specimens of B. curviantennae. A male holotype B female paratype; 1 dorsal view; 2 ventral view. Scale bar: 1 mm.

Figure 16. Habitats of B. conaensis and B. curviantennae. A large clump of Fagaceae plants of collecting site in Xizang, China B village of collecting site in Xizang, China C male of B. curviantennae (arranged) D male of B. conaensis and larva on the wood pile E female of B. conaensis feeding on the lichen growing on wood.