Published online by Cambridge University Press: 31 May 2012
The new genera and species described below are based upon material collected largely in the western United States and Canada. The types represented by Canadian material, which was loaned for study through the courtesy of A. R. Brooks, are returned to the National Collection at Ottawa. Unless otherwise specified under the descriptions, the remainder of the type specimens are in my collection.
* Contribution No. 888, Division of Entomology, Texas Agricultural Experiment Station.