Andrena (Gonandrena) platyparia Robertson 1895

= Andrena (Gonandrena) monroensis Mitchell, 1960: 233 (Michigan holotype; Fig. 6A).

Holotype. ♀ USA: Michigan: Monroe Co.: 23 Jun. 1948, R.R. Dreisbach (NMNH: 75182). Synonymy by LaBerge & Ribble (1972).

County records: Allegan, Antrim, Calhoun, Clinton, Grand Traverse, Ingham, Kalamazoo, Kent, Lapeer, Lenawee, Livingston, Macomb, Mason, Midland, Monroe, Oakland, Osceola, St. Joseph, Van Buren.

Notes. A relatively common specialist on Cornus (Cornaceae) (LaBerge & Ribble 1972).