Aegialia (Silluvia) kabaki Frolov, 2002

Figs. 10–13

Material examined. China, Sichuan Province: WNW of Danba, 6.8 km S of Bianer, H~ 3485 m, 19.08.2004, Belousov & Kabak leg., 2 males; E Danba S Guanyongchang Vill., H~ 2990 m, 9.08.2004, Belousov & Kabak leg., 1 male and 1 female; E of Danba S of Guanyongchang Vill., H~ 3305 m, 10.08.2004, Belousov & Kabak leg., 1 male and 1 female; S Rilong, H~ 3355–3375 m, 27.08.2004, 1 male.

Remark. Examined specimens show considerable variability in the shape of the pronotum, which vary from rounded in posterior angles (Fig. 10) through excavated in the angles (Fig. 11) to somewhat undulate lateral margins and excavated posterior angles (Fig. 12). These specimens, however, do not differ in other characters including shape of parameres and internal sac sclerites, (i.e. in characters distinctive for Silluvia species). I believe these forms are conspecific with the type specimen of A. kabaki, and intermediate forms will be found in future. Similar and even greater variability of the shape of pronotum is also known in A. (Psammoporus) kamtschatica Motschulsky, 1860, a species widely distributed in the northern Palaearctic Region.

Aegialia kabaki is currently known from a few localities in a relatively small region in Central Sichuan Province (Fig. 13) and may be endemic to this region.