Megachile (Eutricharaea) rotundata (Fabricius 1787)

County records: Alger, Barry, Cass, Houghton, Ingham, Kalamazoo, Kalkaska, Kent, Lake, Leelanau, Mecosta, Oakland, Washtenaw, Wayne, Wexford.

Notes. Exotic. The nesting biology has been well studied as M. rotundata is actively managed for alfalfa pollination (Hurd 1979; Pitts-Singer & Cane 2011). It was found in abundance in trap-nests placed on MSU campus, East Lansing, Michigan (JG, pers. obs.).