PROC. ENT. SOC. WASH., VOL. 22, NO. 9, DEC., 1920 235 ON THE IDENTITY OF SEVERAL SPECIES OF CHALCIDOIDEA (HYMENOPTERA). BY A. B. GAHAX, U. S. Bureau of Entomology. The following notes are presented for publication at this time in order to clear up the identity of the species in question before the references in literature become more complicated. The necessity for some of these changes is to be regretted as they involve the sinking of some rather well known names in synonymy, transferring of others, and the resurrection from synonymy of still others. FAMILY CALLIMOMIDAE. Eridontomerus isosomatis Riley. Stictonotus isosomatis Riley, Rept. Ent. U. S. Dept. Agr., 1881-2, p. 186. Stictonotus isosomatis Howard, U. S. Dept. Agr. Bur. Ent. Bull, 5, (old series) 1885, p. 45. Merisus isosomatis Cresson, Syn. Hym. Amer. North of Mexico, 1887, p. 242. Semiotellus isosomatis Dalla Torre, Cat. Hym., vol. 5, 1898, p. 211. Eridontomerus~primus Crawford, Journ. N. Y. Ent. Soc., vol. 15, 1907, p. 179. Merisus isosomatis Viereck's Hym. Conn., Bull. 22, Conn. Sta. Geol. and Nat. Hist. Surv., vol. 3, 1916, p. 478 (description). While attempting to determine some parasitic material recently the writer found it necessary to consult the original description of Stictonotus isosomatis Riley. Upon reading the description he was at once impressed with its failure to coincide with the con-ception of that species current in literature. The description is of an insect with metallic front femora, black median and hind femora, black hind tibiae, and a metallic colored abdomen where-as the species going by that name in the literature has a bright yellow abdomen and yellow legs. An attempt to verify the de-scription by means of the type developed further complications. A single specimen bearing the name and recorded in the type catalog as type of the species was located in the collection of the United States National Museum. The data on the pin and in the type catalog showed this specimen to have been reared by F. M. Webster from Isosoma, Februaiy ">, lss.~>. Since Stictonotus isosomatis Riley was described in 1SN2 from specimens said to have been reared from material received from J. K. P. Wallace of Tennessee, it was at once apparent that the specimen in question could not be Riley's type. Furthermore, this specimen did not correspond to Riley's description nor was it the Stictonotus isosomatis of authors, it being instead a female of Merisus de-structor Say. Search for the true type was finally rewarded by the finding of two pins, one bearing a female mounted on a card point, the other bearing two males similarly mounted. Both pins bore
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