14 PROCEEDINGS OF THE NATIONAL, MUSEUM. vol.60. 



CLISTOPYGA ATRATA, new species. 



In color and structure very similar to canadensis Provancher. but 

 distinctly more slender. 



Female. — Length, 7 mm. ; antennae, 4 mm. ; ovipositor, 1.75 mm. 



Slender ; head in front view transverse, polished, except face, which 

 has distinct well sejDarated punctures; face convex with a median 

 rounded elevation; clypeus medially triangularly impressed nearly 

 to base; malar space hardly as long as basal width of mandible; 

 diameter of lateral ocellus equal to postocellar line and longer than 

 ocell-ocular line ; thorax polished, mesoscutum and scutellum slightly 

 roughened ; metapleurum sparsely and finely punctate ; propodeum 

 without median carinae, sparsely punctate laterally, transversely ar- 

 cuately striate behind; nervulus postfurcal, nearly perpendicular; 

 nervellus broken far below middle, perpendicular; hind tibia longer 

 than femur ; abdomen nearly twice as long as head and thorax, finely, 

 densely punctate, the tergites with distinct elevations and impres- 

 sions, first tergite slightly elevated with carinae strong to summit of 

 elevation; ovipositor slender, distinctly compressed, and straight to 

 near apex, sheath nearly twice as long as first tergite. 



Black; clypeus piceous; basal flagellar joints pale beneath; palpi, 

 humeral angle of pronotum, and tegulae whitish; wings hyaline, 

 very slightly brownish stained ; legs testaceous, front legs, especially 

 coxae and trochanters almost stramineous, hind tibia fuscous with a 

 Vvdiite annulus, reddish below at apex, hind tarsus fuscous with the 

 first three joints more or less white at base, the same pattern repeated 

 in less contrasting colors on middle tibia and tarsus. 



Male. — Like female but thorax and abdomen more strongly sculp- 

 tured; upper orbits with a small brownish mark; front coxae and 

 trochanters white ; cheeks normal. 



Type locality. — Berkley, California. 



Allotype locality. — Yosemite National Park, California, 



Type.—Q?it. No. 24165, U.S.N.M. 



One female taken in September, 1914, by E. P. Van Duzee and 

 one male taken August 10, 1917, by J. E. Patterson and recorded 

 under Hopkins U. S. No. 13334A, which shows it to have been taken 

 from the gallery of Calopus angustus Le Conte in Pinus murrayana. 



SPECIES WRONGLY INCLUDED IN CLISTOPYGA. 



{Clistopyga nigrocephala J) axis) ^Polysjjhincta (Zatypota) 

 nigrocephala (Davis). 



{Clistopyga pleuralis Ashmead)=^spAra^^s pleuralis (Ash- 

 mead), 



{Clistopyga truncata VvoyBJichQ,T)=iGlypta truncata (Pro- 

 vancher). 



{Clistopyga zonata Dsivis) ^=7' romatohia sonata (Davis). 



