ICHNEUMON-FLIES, PART 2 1 EPHIALTINAE 



273 



9. Zatypota nigriceps (Walsh) 



Figure 325,d; 332,k 



Polysphinda nigriceps Walsh, 1873, Trans. Acad. Sci. St. Louis, vol. 3, p. 144; 



d\ ?. Types: d\ 9, ?Illinois (destroyed in Chicago fire of 1871). 

 ? Polysphinda nigrita Walsh, 1873, Trans. Acad. Sci. St. Louis, vol. 3, p. 144; 



d\ Type: d", ?Illinois (destroyed in Chicago fire of 1871). 

 Clistopyga nigrocephala Davis, 1898, Trans. Amer. Ent. Soc, vol. 24, p. 369; c\ 



Type: d\ Illinois (Philadelphia). 

 Polysphinda (Zatypota) braucheri Cushman, 1920, Proc. TJ. S. Nat. Mus., vol. 58, 



p. 33; d", 9. Type: 9, Douglas Lake, Mich. (Washington). 

 Polysphinda (Zatypota) califomiensis Cushman, 1920, Proc. U. S. Nat. Mus., 



vol. 58, p. 34; 9. Type: 9, Santa Cruz Mts., Calif. (Washington). 

 Polysphinda (Zatypota) crosbyi Cushman, 1920, Proc. U. S. Nat. Mus., vol. 58, 



p. 35; cf, 9. Type: 9, Oswego, N. Y. (Washington). 



Front wing of male 2.7 to 4.0 mm. long, of female 2.5 to 4.5 mm. 

 long; eye a little smaller and less bulging than in Z. parva; temple 

 moderately convex; mesoscutum strongly mat; metapleurum mat; 

 propodeum strongly mat, its median longitudinal carinae represented 

 by weak to strong ridges which extend about 0.65 its length; lateral 

 longitudinal carina strong and sharp on apical 0.3 of propodeum, 

 abruptly obsolete more basad; petiolar area of propodeum usually 

 weakly and incompletely defined basally; first trochanter of middle 

 leg of female with a large triangular projection below (this structure 

 absent in other species of the genus); hind femur about 5.5 as long as 

 deep; nervulus distad of basal vein by about 0.5 its length; discoidella 

 absent or rarely present and weak; nervellus a little inclivous; third 

 tergite strongly mat all over, in its grooves with a tendency toward 

 fine longitudinal wrinkling. Structure otherwise as described for 

 Z. parva. 



Figures 121, 122.— Localities: 121 (left), Zatypota u-alleyi; 122 (right), 



Z. nigriceps. 



