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 



