REVISION OF THE GENUS EXETASTES CUSHMAN 305 



Body, antennae, and legs black; front femur at apex and tibia 

 throughout anteriorly yellowish, tarsi brownish apically; wdngs bright 

 yellow, apically infumate, venation yellomsh ferruginous. 



Type locality. — Colorado. 



Type. — Acad. Nat. Sci. Philadelphia no. 1608. 



Paratype.—V.^.'N.M. no. 44732. 



Remarks. — In addition to the type series I have seen one female 

 from Poudre River Canyon, Fort Collins, Colo., 6,000 feet, June 20, 

 1929, Klotz, collector; one from Pollock, Idaho, July 1, 1907, J. M. 

 Aldrich, and one from Meadow Valley, Mexico, C. H. T. Townsend. 

 The above description is based on the three specimens listed above and 

 the National Museum paratype. 



51. EXETASTES ANTHRACINUS, new speciea 



Female. — Length 16 mm, antennae 12 mm. 



Head more than twice as broad as thick; occiput rather deeply 

 concave; temples weakly convex and receding at about 45°, sparsely 

 punctate; frons more densely punctate, especially at sides, scrobes sep- 

 arated by a triangular elevation; face densely punctate, confiuently sa 

 in middle, with a deep impression on each side above; nearly twice as 

 long as broad; clypeus two-thirds as long as broad, base rather strongly 

 convex and densely punctate; cheeks in front view weakly concave; 

 malar space two-thirds basal width of mandible; mandible twice as 

 long as broad at base; eyes very weakly convergent below, slightly 

 longer than dorsal width of face; diameter of lateral ocellus slightly 

 more than half postocellar line; antenna 60-jointed, first joint of fiagel- 

 lum fully twice as long as second, joints bej^ond middle as thick as long, 

 apex attenuate. 



Thorax dorsally densely, laterally more coarsel}^ and sparsely, 

 punctate; notauli very faintly indicated on disk; scutellum narrow, 

 strongly convex, denseh^ punctate; mesopleurum shining; more coarsely 

 punctate, the punctures about their diameter apart; metapleurum 

 somcM^iat more densely punctate; propodeum irregularly rugose, 

 longitudinal and apical carinae indicated. 



Legs slender; hind femur three-fourths as long as tibia; inner cal- 

 carium slightly more than half as long as basitarsus; apical joint of 

 hind tarsus as long as third. 



Wings: Apical abscissa of radius strongly curved at base, less than 

 twice as long as basal abscissa; areolet oblique rhomboidal, recurrent 

 in middle ; recurrent strongly curved and subangulate above; abscissula 

 twice as long as intercubitella. 



Abdomen polished, strongly compressed at apex; first tergite fuUy 

 twice as long as broad at apex, punctate laterally at base; second nearly 

 a half longer than broad at base; ovipositor straight, sheath hardly as 

 long as first tergite. 



