This subgenus has little to distinguish it. Most species have a mandibular angle or tooth on the inferior margin near the base, but the one Florida species has a indistinct basal tooth. Andrena species are moderately large to large bees with long malar spaces, often with a basal inferior tooth or angle, well formed pronotal humeral angles and ridges, front wing has the 1st marginal-cubital meeting the second submarginal in the outer third or more of the cell. Terga rarely have apical pale fasciae and if present, weak.
For more information, see LaBerge, Wallace E. 1980. A Revision of the bees of the genus Andrena of the Western Hemisphere. Part X. Subgenus Andrena.
County Records: Jefferson County; also collected in Thomas Co., Georgia. The map in LaBerge (1980) has the panhandle and the northern counties bordering Georgia in north peninsular Florida shaded indicating its possible presence.
Locations: Lamont, FL
Dates: April 9; LaBerge reports Feb. 22-July 13 across its entire transcontinental range but chiefly collected in March-May.
Plants: Oligolege of willows (Salix sp.)
Notes: This is a widespread, southern oligolege of willows. It can be distinguished by the shiny clypeus, short malar space, shiny scutellum and often scutum, pale vestiture, usually red or yellow hind tarsi and tibiae and often red or partially red abdomen. Females have short tergal hairs with fasciae present on terga 2-4, short tibial scopal hairs and males have distinctive apical tuft of hairs on sternum 6 which is flat apically but not markedly emarginate.
For more information, see LaBerge, Wallace E. 1980. A Revision of the bees of the genus Andrena of the Western Hemisphere. Part X. Subgenus Andrena.