PROC. ENT. SOC. WASH., VOL. 68, NO. 1, MABCH, 1966 33 THE NORTH AMERICAN SPECIES OF PEDIOBIUS WALKER ( HyMENOPTERA : EULOPHIDAE ) B. D. Burks, Entomology Research Division, A. R. S., U. S. Department of Agriculture, Washington, D. C. The chief purpose of this paper is to provide names for three North American species of Pcdiobius Walker that have remained unnamed for many years in the U. S. National Museum collection. It seems desirable, however, to publish at the same time a key to the 23 species that are now assigned to this genus in North America. I also take this opportunity to designate lectotypes for those species that are still rep-resented by a series of cotypes and to include here the available information about the types of all the Nearctic species. In 1963 Peck published a thorough catalog of North American Chalcidoidea (Ca-nad. Ent. Sup. 30, 1092 p.). In this catalog there are complete litera-ture citations for all the described Nearctic species of Pediobiis, along with all the known distribution and host information. Those data need not be repeated here, although I have included a brief statement about the biological relationships of each species. This genus has been known for almost a century, in a very large amount of literature, under the name Pleurotropis Foerster, 1856. In 1953, however, Ferriere showed that Pediobiits Walker, 1846, was the correct name for it (1st. Ent. R. Univ. Bologna Bol. 19: 400). In 1958 I transferred all the Nearctic species from Pleurotropis to Pcdi-obius (U. S. Dept. Agr. Monog. 2, Sup. 1, p. 68). The North Ameri-can species of this genus were first revised in 1912, when Crawford published a key to the 9 species that were then assigned to it (U. S. Natl. Mus. Proc. 43: 177-179). In 1915 Waterston (Bui. Ent. Res. 5: 343-346) defined and characterized this genus, and his views are still accepted by all workers in Chalcidoidea. Waterston also de-scribed and illustrated many of the best specific characters. He was working with the Ethiopian fauna, but the specific characters he used have been found by subsequent workers to be useful for species throughout the world. Key to Nearctic Species, Females 1. Legs beyond coxae yellowish tan 2 All femora and tibiae mostly or entirely black or metallic 3 2. Hind coxae strongly sculptured; apex of scutellum smooth testaceipes ( Crawford ) Hind coxae smooth; apex of scutellum sculptured — crocidophorae, new species 3. Caster narrow and elongate, more than 1^2 times as long as head and thorax combined; first gastral tergum short, entirely smooth; first funicular segment twice as long as pedicel and % as long as second and third funicular segments combined longus (Girault)
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