388 U. S. NATIONAL MUSEUM BULLETIN 2 1 6 pabt 3 



5. Diapetimorpha rufigasler Cushman 



Figures 332,e,f 



Diapetimorpha rufigaster Cushman, 1929, Proc. U.S. Nat. Mus., vol. 74, art. 16' 

 p. 33; 9. Typo: 9, Potomac Creek, Va. (Washington). 



Male: Front wing 4.7 to 6.3 mm. long; clypeus rather weakly con- 

 vex; cheek about 0.65 as long as basal width of mandible; tyloids in 

 the shape of sharp longitudinal carinae, occurring on 4 segments, in 

 most cases shorter than the segments; metapleurum with weak indis- 

 tinct punctures and a rudimentary juxtacoxal carina; intercubitus 

 about 4.5 times as long as width of radial vein. 



Head and body marked with yellowish white, black and fulvofer- 

 ruginous as in figure 332, e; palpi white; scape white below, fuscous 

 above; pedicel and flagellum black, the flagellum with a white band 

 that covers about 5 segments; front and middle legs fulvous, their 

 coxae and trochanters ivory white, those of the middle legs fulvous 

 above; front and middle tarsi brownish apically; hind coxa, tro- 

 chanters, femur, and tibia fulvoferruginous, the apex of tibia a little 

 darkened; hind tarsus white, the basal 0.35 to 0.75 of its first segment 

 light brown, its fifth segment fuscous. 



Female: Front wing 4.5 to 5.8 mm. long; clypeus rather wealdy 

 convex; cheek about 0.70 as long as basal width of mandible; meta- 

 pleurum punctatorugose; propodeal teeth about 0.9 as long as their 

 basal width ; apical carina of propodeum bowed stronglyjorward be- 

 tween the teeth, weak and indistinct; intercubitus about 4.5 as long 

 as the width of radial vein. 



Head, thorax, and abdomen marked with black, ivory, and fulvofer- 

 ruginous as in figure 332, f; palpi white, fulvous apically; pedicel 

 fulvous brown; scape and flagellum fuscous, the flagellum often partly 

 brown basally, with a median white band (incomplete below) that 



Figures 212, 213. — Localities: 212 (left), Diapetimorpha rufigaster; 213 (right), D. introita. 



