Hylaeus (Spatulariella) hyalinatus Smith 1842

County records: Eaton, Ingham, Washtenaw, Wayne.

Notes. Hylaeus hyalinatus is a recent introduction to the North American continent (Ascher 2001; Ascher et al. 2006; Tonietto & Ascher 2009). It is one of two members of Hylaeus (Spatulariella) in the Midwest and the only one currently known from Michigan, but see comments on Hylaeus punctatus (Brullé) in Appendix 1. Hylaeus hyalinatus is relatively common in urban centers in southern Michigan, including Detroit, Ann Arbor, Ypsilanti and Lansing.