NO. 2197. NEW PARASITIC HYMENOPTERA—GAHAN. 201 



Subfamily Opiinae. 



OPIUS PEGOMTIAE, new species. 



Female. — Length 8.8 mm. Euns to kukakense in the writer's pub- 

 lished key to the genus/ but differs from that species by the second 

 abscissa of radius being distinctly less than twice as long as the first 

 abscissa and slightly more than half as long as the first transverse 

 cubitus; by the first abdominal tergite being as broad at apex as long 

 down the middle, by having the area on the mesoscutum surrounding 

 the median fusiform impression more or less distinctly wrinkled and 

 by the more robust form of the body. 



Head above shining, the vertex more or less indefinitely rugulose 

 along the occipital margin; face rugulose-punctate with a rather 

 strong median ridge which is nearly smooth, the frontal depression 

 smooth medially: clypeus fitting close to the mandibles, strongly 

 punctate except apically and about thrice as broad as long down the 

 middle; eyes short oval and about as broad as the posterior orbits; 

 antennae 37-jointed in the type; mesoscutum mostly smooth, but with 

 the anterior margin punctate and a rugulose area surrounding the 

 deep fusiform impression posteriorly; scutellum elevated and 

 strongly rugose; parapsidal grooves absent except at the anterior 

 lateral angles; sides of the prothorax and an area beneath the 

 wings on the mesopleura rugose; propodeum rugose; first abdominal 

 tergite rugose, the following tergites polished; ovipositor concealed. 

 Head, thorax, and abdomen black; mandibles except at apex, palpi, 

 and all legs excepting the posterior coxae rufo-testaceous; flagellum 

 black; wing veins and stigma mostly dark brown, paler toward the 

 base of wing. 



Male. — Similar in all respects to the female, except that the ventral 

 margin of the mandible has a more or less distinct notch or tooth 

 near the base. 



Type-locality. — Oxnard, California. 



Type.—Ciit. No. 20378, U.S.X.M. 



Host. — Pegomyia vicina. 



Six specimens from the type-locality reared from pupae by B. L. 

 Boyden and recorded in the Bureau of Entomology under Chitten- 

 den No. 3106. 



OPIUS CORIACEUS, new species. 



Female. — Length 2 mm. In the writer's recently published re- 

 vision of the Opiinae of North America,^ this species runs in the key 

 to species of Opius to category 47, but may be distinguished from 

 any species included there by the distinct, fine, close, coriaceus sculp- 

 ture of the entire head, thorax, and abdominal tergites. 



» Proc. U. 8. Nat. Mub., vol. 49, 1915, p. 68. 



