A New Genus and New Species of Chrysopidae From the Western United States, With Remarks on the Wing Venation of the Family (Neuroptera)

In some material collected by the writer in southern Arizona in 1949, a single female specimen of a chrysopid was f.ound, representing a previously unknown genus and species. The venation of this genus is remarkably like th.at of the Chrysopidae described from the Iiocene shales of Colorado. Two other recent genera, Triplochrysa Kimmins and Dicyochrysa Petersen, similarly retain an archaic type of venation. Since these latter tw.o genera have not been discussed in the light of the interpretation of the venation given by F. M. Carpenter (1935), they are compared in this paper with the new genus and with the Miocene genera.