Colletes compactus compactus Cresson 1868 ( compactus group)

County records: Bay, Benzie, Cheboygan, Clinton, Huron, Ingham, Kalamazoo, Livingston, Manistee, Midland, Montcalm, Oakland, Van Buren, Washtenaw.

Notes. Nests described by Rozen & Favreau (1968) in New York. Specialist on Symphyotrichum and Solidago (Asteraceae) .