The wheat stem sawfly, Cephus cinctus Norton (Hymenoptera: Cephidae), is a major pest of wheat across the northern Great Plains of North America.
The wheat pest has a wide host range, attacking numerous wild grasses and cultivated cereals in crop and grassland habitats, where it is, in turn, attacked by two native braconid parasitoids. Quantitative assessments of sawfly infestation and parasitism