42 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.61. 



26. MICROGASTER CONGREGATIFORMIS Viereck. 



Microgaster {Microgastcr) congregatiformis Viereck, Biill. 22, Conu. State 

 Geol. and Nat. Hist. Survey, 1917 (1916), p. 202. 



Type. — In the Connecticut Agricultural Experiment Station. 



The characters noted in the key to species will separate this species 

 from epagoges and phthorimaeae^ to which it is most closely allied. 



Connecticut, Massachusetts, New York, Canada. 



Host. — Ph>/sostesia, species. 



A paratype from New Haven, Connecticut, is in the National Col- 

 lection; also a female specimen, from the same locality, reared by 

 Dr. W. E. Britton, from Phj/sostesia, species, July 16, 1918. The 

 collection of Cornell University contains one specimen, from Mon- 

 treal, Canada ; in Doctor Brues's collection there are three specimens 

 from Franklin, Massachusetts ; and in that of the American Museum 

 of Natural History there is a single specimen from Long Island, New 

 York, taken by J. L. Zabriskie. 



SPECIES OF MICROGASTER UNKNOWN TO ME. 

 MICROGASTER MEXICANA Cameron. 

 Microgaster mexwamis Cameron, Biol. Cent. Amer. Hym., vol. 1, 1883, p. 397. 

 Type. — Probably in the British Museum. 

 Mexico, Northern Sonora (Morrison). 



This species may not belong to Microgaster. Cameron's charac- 

 terization of the abdomen causes me to suspect that it is a Micro- 

 plitis. 



MICROGASTER LATERALIS Provancher. 



Microgaster lateralis Provancher, Addit. Faun. Canad. Hymen., 1886, p. 141. 



Type. — In the Museum of Public Instruction at Quebec. 



Point Eouge, Canada, 



The notes made by Mr. A. B. Gahan upon this species, after an 

 examination of the type, mention the second intcrcubitus as being 

 represented merely by a fuscous line, the second cubital cell being 

 open at the apex. This character, together with the long ovipositor 

 and the sculpture of the abdomen, mentioned by Provancher, lead 

 me to doubt that the species is correctly placed. I suspect that it 

 may be an Apanteles, possibly falling near consimilis. 



SPECIES WRONGLY CLASSIFIED AS MICROGASTER WHICH HAVE NOT 

 PREVIOUSLY BEEN REMOVED FROM THAT GENUS. 



APANTELES UNICOLOR (Curtis). 



Microgaster unicolor Curtis, Descr. Insects J. C. Ross, 2d Voyage, 1835, 

 Appendix, p. 62. 



Type. — Probably in the British Museum. Arctic Eegions, North 

 America. 



