Lasioglossum (Sudila) ( Cameron , 1898 )

Zhang, Rui, Li, Qiang, Niu, Ze-Qing & Zhu, Chao-Dong, 2011, A newly recorded Subgenus Sudila from China with description of two new species (Hymenoptera: Halictidae: Lasioglossum), Zootaxa 2937, pp. 31-36 : 32

Lasioglossum (Sudila) ( Cameron, 1898)

(Figs. 1–2)

Diagnosis. The diagnosis for the subgenus Sudila follows any other subgenus of Lasioglossum : pilosity sparse; occiput not carinate; the fore wing with veins 1r-m, 2r-m and M-b, all narrower than M-a, Rs-a and Rs-b, lr-m interrupted near the both ends (Fig. 1); the hind wing with hamuli arranged in 2-1-2 (Fig. 2); in front of the middle coxa with the mesepisternal tubercle, but degenerating in L. (S.) paralphenum ; basitibial plate oval, pointed apically, margin distinctly carinate (absent in male), and surface with sparse hairs; the inner spur of the hind tibia distinctly pectinate in both sexes ( Michener, 2007; Sakagami et al.,1996).

FIGURES 1–2. 1, fore wing venation in the area of 2nd and 3rd submarginal cells; 2, hamuli arranged. Scale line for figure 1, 0.5 mm; for 2, 0.25 mm.