Andrena (Euandrena) polemonii Robertson 1891

County records: None.

Notes. This oligolectic species is known from neighbouring states. It is included based on Mitchell’s (1960) authority and records from the Chicago area within 100 km west of the southwest corner of Michigan (LaBerge 1977; Pearson 1933). It visits Polemonium reptens L., which is restricted to the southern corners of Michigan, but also Geranium maculatum L. and Ranunculus hispidus Michx., which are more widespread in the LP (Robertson 1929; Voss & Reznicek 2012).