Mermis subnigrescens apparently infects only members of the families Acrididae and Tettigoniidae in Iowa; attempts to infect members of the family Gryllidae were unsuccessful. At least fifteen species of grasshoppers may harbor this parasite in Iowa.
Proceedings of the Iowa Academy of Science
©1969 Iowa Academy of Science, Inc.
"Orthopteran Infections by Mermis subnigrescens Cobb (Nematoda) in Iowa,"
Proceedings of the Iowa Academy of Science, 76(1), 446-447.
Available at: https://scholarworks.uni.edu/pias/vol76/iss1/59