Hylaeus (Prosopis) illinoisensis (Robertson, 1896)
Counties: Aitkin, Anoka, Brown, Clearwater, Faribault, Hennepin, Houston, Itasca, Kittson, Morrison, Norman, Pine, Polk, Ramsey, Red Lake, Todd, Traverse.
Comments: This member of the modestus group requires additional taxonomic investigation to fully delineate the species boundaries. Most recent works have likely lumped this species under “ Hylaeus ‘ modestus group’” (e.g. Lane et al. 2020, 2022). Refer to comments for H. modestus .