Data from: Phylogeography of the Wheat Stem Sawfly, Cephus cinctus Norton (Hymenoptera: Cephidae): Implications for Pest Management
The wheat stem sawfly is a key pest of wheat in the northern Great Plains of North America, and damage resulting from this species has recently expanded southward. The genetic divergence between samples collected in North America and northeastern Asia using two mitochondrial regions (COI and 16S) are examined. The structure of genetic diversity in the main wheat producing areas in North America are also characterized using a combination of mtDNA marker and microsatellites in samples collected both in wheat fields and in grasses in wildlands.