NO. 2334. NORTH AMERICAN ICHNEUMON-FLIES— CUSHMAN. 287 



apical abscissa of radius sinuate; intercubitus oblique, upper end 

 beyond lower, radius thickened at its point of junction, recurrent 

 slightly beyond intercubitus, distinctly more than half as long as 

 first abscissa of subdiscoideus; nervulus shghtly antefurcal; nervellus 

 strongly antefurcal, broken very close to submediella; abdomen very 

 slender, first and second tergites subequal in length and together as 

 long as rest of abdomen; first tergite polished, completely encircling 

 petiole, postpetiole nearly twice as long as wide; second tergite about 

 six times as long as basal width, inconspicuously striate medially, 

 pohshed laterally; third tergite polished, gradually compressed to- 

 ward apex; other tergites strongly compressed; ovipositor sheath 

 barely as long as first tergite. 



Black; nearly complete orbital rings, clypeus, mandibles, cheeks, 

 tegulae, all coxae apically, trochanters more or less, front and middle 

 femora in front and at apex, dorsal stripe on hind tibia, and tarsi 

 basally j^ellow; coxae and basal joint of hind trochanters piceous at 

 base, hind coxae largely so; hind tibiae, except dorsal stripe, piceous; 

 scutellum and spot on each side of prescutum rufous; wings slightly 

 stained; abdomen rufous, piceous at apex, second and tliird tergites 

 blackish at base. 



Male. — Very similar to female, but differing as follows: Malar 

 space shorter than basal width of mandible ; ocell-ocular line scarcely 

 half as long as diameter of lateral ocellus; prescutal and scutellar 

 spots yellow. 



Type locality.— Victoria, Texas. 



Type.— Cat. No. 22152, U.S.N.M. 



One specimen of each sex collected May 8, 1911, on Siillingia syl- 

 vatica by J. D. Mitchell. 



CREMASTUS (ZALEPTOPYGUS) DORCASCHEMAE, new species. 



Except that the abdomen is not distinctly red beyond the second 

 tergite, but rather piceous, this species runs in the female to couplet 

 29 in my key and the male to ohereae Viereck. The female differs 

 from both of the species under couplet 29 in being normal with 

 respect to all three of the subgeneric characters, in having the temples 

 broad and strongly rounded, and the second tergite hardly three 

 times as long as basal width. The male differs from olereae, in 

 addition to the color of the abdomen, in having the wings hyaline 

 and by other characters. In the color of the wings it agrees with 

 orhus (Davis), from which the abdominal color will distinguish it. 

 Female. — Length, 7 mm.; antennae, 6 mm.; ovipositor, 3 mm. 

 Head from above more than half as long as wide, temples, vertex, 

 and cheeks subbuccate; face slightly wider than frons, densely shining 

 pubescent; clypeus barely half as long as interfoveal line, broadly 

 rounded at apex; malar space slightly shorter than basal width of 



