Bolitogyrus uncus Cai et al., 2015

Brunke, Adam J., 2017, A revision of the Oriental species of Bolitogyrus Chevrolat (Coleoptera, Staphylinidae, Staphylininae), ZooKeys 664, pp. 1-97 : 11-12

Bolitogyrus uncus Cai et al., 2015 Figs 8C, E, G, I, 19A (map)

Bolitogyrus uncus Cai et al., 2015: 472.

Type locality.

Longtanghe, Tengchong County, Yunnan, China.

Type material.

The holotype was not examined of this recently described species but the illustrations in the description ( Cai et al. 2015) and additional photos provided by the senior author of that paper were studied.

Diagnosis.

Among the members of the Electus Group: head punctures clearly separated (Fig. 3E); elytra non-metallic; hind tibia entirely dark, as dark as darkened portion of femur (Fig. 3H); antennomere 6 quadrate, 7 weakly transverse (Fig. 4A); paramere slightly longer than median lobe, with weakly attenuate apex in parameral view (Fig. 8E), in lateral view with acute lateral projection (Fig. 8G); apex of median lobe in lateral view forming a relatively short triangle (Fig. 8C); median lobe with expansion in lateral view (as in Fig. 8B).

Distribution.

Figure 19A. Known only from one locality in western Yunnan, China.

Bionomics.

This species was collected at a lower elevation (ca. 2080 m) than its closest relative, B. electus , and may regularly occur in the different forest type. The single known specimen was collected in May.

Comments.

In their description of Bolitogyrus uncus , Cai et al. (2015) apparently compared it to the concept of B. electus used by Hu et al. (2011), which actually represented a different and new species ( B. confusus ). However, B. uncus remains a valid species based on diagnostic characters given above including the shorter apex of the median lobe and different shape of the paramere in lateral view. The differences mentioned by Cai et al. (2015) in the length of the paramere versus the median lobe (slightly longer versus approximately equal) are considered too variable based on the study of more material.