Andrena (Micrandrena) Ashmead, 1899

Andrena (Micrandrena) Ashmead 1899:89

TYPE SPECIES: Micrandrena pacifica Ashmead, 1899 = Andrena melanochroa Cockerell, 1898, by original designation. Andrena (Andrenella) Hedicke 1933:210

TYPE SPECIES: Melitta minutula Kirby, 1802, by original designation.

Diagnosis. The Andrena (Micrandrena) are small bees (4.5–10 mm) with black or dark brown integument. The propodeal corbicula is incomplete, and the basal area of propodeum has a rugulose surface that sometimes appears to be finely granular. The metasomal terga have distinct PPs between the microsculptures (in some species are shiny with a stronger PP). Additionally, the process of labrum is complete, although it is clearly bilobate in the female of one species, and weakly bilobate in the males of several species; however, an incomplete propodeal corbicula identifies them.