Three acarine parasites of Stenolophus spp are described from Michigan. Eutarsopolipus elzingai Husband (Acari: Podapolipidae), previously known from eastern Kansas, Eutarsopolipus brevichelus Husband and Husband, with one Michigan record, and Crotalomorpha camini Lindquist and Krantz (Acari: Crotalomorphidae), previously known from Kansas, Nebraska, Arkansas and Oklahoma, are widely distributed in Michigan as subelytral parasites of Stenolophus comma (Fabricius) (Coleoptera: Carabidae) and Stenolophus lecontei (Chaudoir), the seed corn beetle. Eutarsopolipus elzingai and E. brevichelus may occur occasionally on the same host beetle.
Husband, Robert W. and Husband, David O.
"Distribution of Eutarsopolipus (Acari: Podapolipidae) and Crotalomorpha Camini (Acari: Crotalomorphidae), Ectoparasites of Stenolophus (Coleoptera: Carabidae) in Michigan, U.S.A.,"
The Great Lakes Entomologist, vol 37
Available at: https://scholar.valpo.edu/tgle/vol37/iss1/2