Batrisus sibiricus Sharp, 1874

(Figs 2 A, 3J, 4A)

Material examined. (1 ♂), labeled ‘ China: Shanghai, Xuhui District (徐汇区), Huashan Green Space (华山绿地), 31°12'29"N, 121°25'40"E, alt. 10 m, v.2004, Xiao-Bin Song leg.’ (SNUC).

Distribution. Russia: East Siberia, Far East; Korean Peninsula; China: Beijing, Shanghai (new provincial record), Sichuan.

Comments. This widely distributed species can be readily recognized by the presence of an ocular canthi (Fig. 2 A), a complete marginal carina extending from the subhumeral fovea at side of the elytra, antennomeres XI with a small ventral denticle, mesotibiae with a distinct apical spine in the male, and most importantly, the endophallus of the symmetric and robust aedeagus composed of a pair of elongate lateral sclerites (Fig. 3 J; Besuchet 1979, fig. 2). According to Besuchet (1979: 283) and Nomura & Lee (1993: 5) this species has been associated with Lasius ants. The single male from Shanghai was collected under a stone with ants (Fig. 4 A), unfortunately no specimen of the ant was collected.