NO. 1S59. i^OllE NEW ICHXEUMON FLIES— YIERECK. 295 



satisfactor}^ characters found in the thorax the affinities are with 

 Cremastus, Pristomerus, and Leptoijygus. With reference to the 

 propodeum the closest rehitionship is with Leptopygus as represented 

 by the genotype of Leptopygus or Leptopygus Jiarpurus (Gravenhorst). 

 Type. — Zaleptopygus oberex, new species. 



ZALEPTOPYGUS OBEREjE, new species. 



Female. — Length 11.5 mm.; sheaths of the ovipositor 4 mm. long; 

 bears a close resemblance to Zaleptopygus orbitalis Cresson from which 

 it may be distinguished by the areola being virtually as long as the 

 petiolarea, in the thorax which is apparently twice as long as high, in 

 the almost quadrate lower division of the metapleurae; also not as 

 brightly ornamented as in Z. oi^hitalis Cresson, although the orna- 

 mentation follows a similar pattern, and in the darker appendages, 

 the wings being distinctly brownish and not almost whitish as in 

 Zaleptopygus orbitalis Cresson, 



IfoZe.— Length 10.5 mm.; very similar to the female but with a 

 yellow spot on the face and \sdth the scape partly 3^ellow beneath. 



Type.— C^i. No. 13798, U.S.N.M. 



Type-locality. — Cliicago, Illinois. 



"Parasite of Oberea tripunctata" according to ]\Ir. A. A. Girault, 

 from whom the species was received. 



