396 DESCRIPTIONS OF ICHNEUMONID.E ASHMEAD. 



third and fourth joints of the flagelluui each being longer; scape stout, 

 swollen. Head and thorax finely punetulate; head subquadrate, as 

 broad as the broadest part of the thorax, the face sparsely pubescent; 

 metathorax very slightly louger than high, truncate behind aud dis : 

 tiuctly areolated, the spiracles small, oval. Abdomen about half again 

 as long as the head and thorax together, microscopically shagreeued, 

 the petiole longitudinally aciculated, the ovipositor slightly exserted. 

 Wings subhyaliue ; stigma aud veins brown-black, a pale spot between 

 parastigma and stigma, the areolet large, pentagonal, the sides nearly 

 equal, the outer nervure being delicate and pale. 



Habitat.— Washington, D. C. 



Described from two specimens, reared August 18, 1884, from Euryp- 

 tychia saligneana Clem. 



The uniformly darker color, stouter form, more prominent ovipositor, 

 sculpture, and anteunal characters at once distinguish this species 

 from C. helvus Cr. 



Colpcgnathus annulicornis sp. nov. 



Female.— Length, 5.5 1 "" 1 . Pale ferruginous, similar to C. helvus Cr., 

 but smaller; the antennae brown with annulns in the middle, the joints 

 uine to thirteen being yellow, joints one, two and three of nagellum 

 being about equal in leugth, the fourth aud fifth being slightly shorter. 

 The punctuation of the thorax and abdomen is rather coarse, nearly 

 continent, here differing decidedly from both C. helvus and G.euryptychice. 

 Wings hyaline, stigma and veins ferruginous, the stigma paler basally; 

 areolet pentagonal, the upper side the same length as the lower outer 

 side. 



Habitat. — Bayou Sara, La, 



Described from one specimen taken by Mr. E. A. Schwarz, in Feb- 

 ruary, 1879. 



HERPESTOMUS Wesmael. 



Herpestomus plutellss sp. nov. 



Male.— Length, 5.1 m '". Black, polished; antenna? dark brown above, 

 fulvo-ferrugiuous beneath; head and thorax sparsely finely punetulate, 

 the latter anteriorly with a few transverse wrinkles, the pleurae more 

 distinctly punctate, the metathorax strongly areolated, the surface of 

 areas transversely wrinkled; spiracles small, round; mandibles out- 

 wardly black, inwardly ferruginous, the inner tooth shorter than the 

 outer and situated its length below the outer tooth; palpi and legs, fer- 

 ruginous, all tarsi, apex of middle tibia?, streak inwardly on posterior 

 femora, the base and apex of tibise, dusky, posterior coxa? aud first joint 

 of trochanters, black. Abdomen black, shagreeued, the gastrocoeli 

 large, distinct, and distant from the basal margin ; they, as well as 

 the apical margins of the second, third and fourth segments, are red, 

 the basal margin of third narrowly, and a slight tinge on the extreme 



