300 PROCEEDINGS OF THE NATIOX^^X, MUSEUM vol. 84 



as diameter of an ocellus ; antenna slender, attenuate apically , fully as 

 long as body, 59-jointed. 



Thorax rather densely and coarsely punctate, mesoscutum much 

 less densely so than pleura and shining; mesopleurum rather deeply 

 longitudinally concave below; scutcllum strongly convex, narrow 

 triangular; propodeum rugulose, without distinct apical carina. 



Legs rather stout, hind femur fully three-fourths as long as tibia; 

 inner hind calcarium less than half as long as basitarsus; apical joint 

 of hind tarsus shorter than third, claws weakly pectinate basally. 



Wings: Second recurrent vein nearly straight; nervulus nearly inter- 

 stitial and slightly reclivous; abscissula less than twice as long aa 

 intercubitella. 



Abdomen polished, short and broad, first tergite depressed through- 

 out, in dorsal view with sides straight from base to apex, nearly two- 

 tliirds as broad at apex as long, sparsely punctate at base; second 

 fully as broad at base as long, sides widely divergent; ovipositor 

 straight, sheath much less than half as long as first tergite. 



Black with wings very deeply infumate and slightly paler apically; 

 antennae brownish. 



Type locality .—-CoMoTjim. 



Type.— Acad. Nat. Sci. Philadelphia no. 1609. 



47. EXETASTES BITUMINOSUS, new species 



Plate 16, Figure 5; Plate 17, Figure 37; Plate 18, Figures 43, 67; Plate 



21, Figure 116 



Exetastes rufofemoratus Riley and Howard (not Provancher), Ins. Life, vol. 3, 

 p. 158, 1890. 



A very distinct species which, because of its black color with bright 

 red hind femora, has repeatedly been misidentified as rufofemoratus 

 Provancher. 



Female. — Length 15 mm, antennae 14 mm. 



Head hardly broader than thorax and barely more than twice as 

 broad as thick medially, occiput broad and moderately concave; 

 temples punctate, slightly convex and receding at about 45°; frons 

 slightly concave, rather densely punctate, mat, the interspaces finely 

 sculptured; face sculptured like frons with punctation somewhat 

 coarser, fuUy twice as broad as long, concave below each antenna, and 

 somewhat roundly elevated medially; clypeus much narrower than 

 face, nearly twice as broad as long, basal portion short, strongly con- 

 vex, especially in middle, apex strongly rounded \vith a more or less 

 distinct median emargination and groove; cheeks in front view 

 straight or faintly convex, their extended angle nearly right; malar 

 space about three-fourths as long as basal width of mandible; junction 

 of occipital and li3^postomal carinae much less than basal width of 

 mandible from the latter; mandible less than twice as long as broad 



