Further laboratory evidence for the separate species status of the South American Locust (Schistocerca cancellata Serville) and the Central American Locust (Schistocerca piceifrons piceifrons Walker) (Acrididae, Cyrtacanthacridinae)

Summary

Results are given of experimental crosses and backcrosses of Schistocerca piceifrons piceifrons (Walker), the Central American Locust, with S. cancellata (Serville). The high levels of mutual pre- and post-zygotic incompatibility indicate that they should be given separate species status. It follows that control strategy will be effective when carried out by separate subregional organizations.