ART. 15. KEVISION OF ICHNEUMON-FLIES MUESEBECK. 55 



more or less dusky ; abdomen entirely black, except the membranous 

 margins along the first dorsal plate, which are brown. 



y)/aZe.— Essentially as in the female. 



Cocoons.— 5 mm. long; leathery, elliptical, tapering strongly to- 

 ward both ends, and provided with a number of fine striations ; color 

 light brown. 



Type locality.— Maxwell, New Mexico. 



Type.— Cut ^o. 24002, U.S.N.M. 



Described from three female and one male specimens, reared by 

 D. J. Caffrey, June 4, 1915, from Autographa calif ornica Speyer, in 

 the Bureau of Entomology, under Webster No. 11135. 



12. MICROPLITIS HYPHANTRIAE Ashmcad. 



MicropUtis huphantriae Ashmead, Proc. Ent. Soc. Wash., vol. 4, 1898 

 (1897), p. 164. 



Type.— In the United States National Museum. 



Illinois; Massachusetts; Arkansas; Texas; Missouri; Michigan; 

 Maryland; Ohio; New York; Indiana; Ontario; Canada. 



Hosts.— Hyphantrla cunea Drury; Xylina, species; Apatela furci- 

 fera Guenee; Acronycta hasta Guenee. 



Cocoon.— 2,.^ mm. long, brownish, not ribbed, apparently solitary. 



The species is exceedingly close to ceratomiae, but can be satis- 

 factorily distinguished by use of the group of characters given in 

 the foregoing table. 



In addition to the type series the National Collection has the 

 following material : One reared from Xylina, species, by D. Isley, at 

 Bentonville, Arkansas, under Quaintance No. 16336 ; one from Texas, 

 from the Belfrage Collection; one reared from a noctuid larva in 

 Missouri; one reared from Apatela furcifera at Sullivan, Indiana, 

 in the Bureau of Entomology, under No. 143 L° ; and collected speci- 

 mens from Maryland; Wooster, Ohio; Canada, and Michigan (C. 

 F. Baker), and Algonquin, Illinois. The Cornell University Col- 

 lection has several specimens from Chicopee, Massachusetts; Wau- 

 bamic, Ontario, Canada (H. S. Parish) ; and Ithaca, New York. 

 I have also seen one specimen from the collection of the American 

 Museum of Natural History, reared from Act'onycta hasta, by J. A. 

 Grossbeck. The collection of the Gipsy Moth Laboratory, at Mel- 

 rose Highlands, Massachusetts, has one specimen from Tewksbury, 

 Massachusetts. 



13. MICROPLITIS CERATOMIAE Riley. 



MicropUtis ceratomiac, Riley, Trans. St. Louis Acad. Sci., vol. 4, 1881, 



p. 303. 

 MicropUtis waldeni Viekeck, Bull. 22. Conn. State Geol. and Nat. Hist. 

 Survey, 1917 (1916), pp. 203, 204. 

 Type.— In the United States National Museum; type of waldeni 

 is in the Connecticut State Agricultural Experiment Station, at New 

 Haven. 



