﻿198 POMONA COLLEGE JOURNAL OF ENTOMOLOGY 



closely punctured with large round punctures, smaller anteriorly; colored 

 hair of dorsal surface gradually becoming white beneath. Prothoracic spine 

 prominent, sharp. Wings hyaline ; nervures and stigma light, almost yellow. 

 Tegulje brown in center, yellowish on edges. 



Abdomen — Rather slender, black, not shining, finely, densely punctured, 

 first segment less densely so. Apices of segments with broad, yellowish fascis. 

 Apical margins of segments one and two depressed. 



Legs — Dark brown or black, except tarsi, which incline toward yellowish 

 brown. Posterior femora with long white floccus. Tibias with short sparse, 

 white to golden, pubescence. Tibial spurs yellow, finely serrate. First joint 

 of posterior tarsi long, four times as long as broad ; rest of joints long also. 

 Claws yellow to brown, apically cleft. 



Figure 75. Colletes volsellata. 



Genitalia (Fig. 75) — Stipes notched; apex rather short but slender; this 

 and central part densely covered with long, fine hair. Sagittal rods long, 

 slender, curved outward. Membranous wings large, rounded, extending almost 

 to base. Volsella, exceedingly large and conspicuous. Seventh ventral plate 

 short and broad; each wing narrow and nude at base, apically expanding 

 broadly ; the inner and outer margins with patches of hair, the inner patch 

 coarser and more spiny. The apical portion between the hair patches is almost 

 transparent, but the basal portion is darkened. 



Type locality, Guadalajara, Mexico. Described from two males. 

 Colletes guadalajarensis n. sp. 



Male — Length 7 mm. Black, with white or pale yellowish pubescence. 

 Head broader than long ; eyes prominent, converging below, inner margin 

 concave. Face with long, white, sparse plumose hairs. Clypeus with broad 

 shallow punctures, larger, forming stri?e, near end ; truncate at end. Mandibles 

 black, red at tips, blunt, very slightly toothed. Supraclypeal area with small 



