REVISION OF THE PARASITIC HYMENOPTEROUS INSECTS OF THE GENUS APHYCUS MAYR, WITH NOTICE OF SOME RELATED GENERA. By P. H. TiMBERLAKEj Of the Bureau of Entomology, United States Department of Agriculture. The genus Apliycus was erected by Gustiiv ]\Iayr early in 1876 in "Die curopaischen Encyrtiden" with three species, of which Apliycus apicalis (Dalman) was selected by Ashmead in 1900 as the genotype. As treated in the present paper, most of the species of the genus Apliycus are more similar to Apliycus punctipes (Dalman), the third species listed by Mayr, but are also congeneric with A. apicalis as far as can be made out from descriptions and the limited material of the latter at hand. Since the publication of Mayr's paper thirty-nine species have been described under this genus or later referred to it. Three of these, however, were removed later by Howard and Ashmead to other genera, A. clirysopae falling in the genus hodromus Howard, A. niger forming tlie type of Rolcencyrtus Ashmead, and A. unicolor being placed in Phaenodiscus Foerster. Jt is apparent, nevertheless, even after the removal of these species, that the genus in its present state contains several discordant elements. Chief among these are three Ectromine species described by Howard, namely A. dactylopii, A. nigritus, and A. toionsendi, all of which fall naturally in the genus Anagyrus Howard, and a fourth Ectromme, A. albiclavatus Ashmead, which is more like Paraleptomastix Girault than any other described genus and may be placed there at least provisionally. Other discord-ant elements are A. angelicus Howard, which forms the type of the new genus Pscudapliycus described below; A. texanus Howard, here con-sidered to be congeneric with Aceropliagus coccois Emily vSmith; A. australiensis Howard, serving as type of the new genus Aphycopsis; A. terryi FuUaway, which also must be separated under the new generic name Pseudococcohius; and, finally, A. pulcliellus Howard, which must be placed in Girault's recent genus Aenasioidca. The t^Tpes of A. hrunneus Howard and A. liowardi Cockerell were not available for study or, as in case of the latter species, in too poor Proceedings U. S. National Museum, Vol. 50— No. 2136. 10600°— Proc.N.M. vol.50— 16 36 501
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