Andrena (Callandrena s. l.) rudbeckiae Robertson 1891 (melliventris group)

County records: Allegan, Berrien, Cass, Ingham, Ionia, Kalamazoo, Livingston, Ottawa, Saginaw, Van Buren.

Notes. Specialist on Rudbeckia and Ratibida (Asteraceae) (LaBerge 1967). Nesting biology and foraging described from Texas by Neff & Simpson (1997).