278 PROCEEDINGS OF THE NATIONAL MUSEUM vol.84 



Almost entirely ferruginous, mth small black stains on occiput, 

 prepectus, bases of coxae, and in thoracic sutures; flagellum black 

 above and apically, brownish below with a yellowish annulus occupy- 

 ing joints 8-15; apices of hind femur and tibia and ovipositor sheath 

 black, the last brown at apex; tibiae and tarsi paler, hind tarsus 

 almost yellow; front wing bright yellow with a longitudinal streak 

 below subcosta, a broad fascia opposite stigma and apex, confluent 

 below with the fascia, infumate, the fascia nearly black; hind wing 

 nearly hyaline with apical third dilutely infumate. 



Tyj>e locality. — Douglas, Ariz. 



Type.—V.S.IS^M. no. 51807. 



One female taken August 20, 1933, by W. W. Jones. 



20. EXETASTES CRASSISCULPTUS, new species 



Plate 19, Figure 70 



This and the next two following species form a very distinct group 

 characterized by very coarse scidpture, concave mesopleurum, 

 ventrally incomplete occipital carina, very long, slender, and apically 

 attenuate antennae, and short ovipositor. 



Female. — Length 13 mm, antennae 13 mm. 



Head broader than thorax, hardly half as thick medially as broad, 

 occiput deeply concave, temples moderately convex and receding, 

 nearly as long as short diameter of eye, rather coarsely and densely 

 punctate; frons concave, confluently punctate, mat; face less than 

 half as long as broad, medially somewhat elevated, coarsely and con- 

 fluently punctate; clypeus rather weakly separated, much narrower 

 than face, more than half as long as broad, emarginate and usually 

 with a median groove apically, basal portion very short, punctate 

 almost like face, not strongly convex, apical portion finely shagreened, 

 mat; cheeks in front \aew straight, their extended angle acute; malar 

 space three-fourths as long as basal width of mandible ; mouth hardly 

 wider than face; mandible one and three-fourths times as long as 

 broad at base, somewhat narrowed toward apex; occipital carina not 

 reaching hypostomal carina; eyes strongly convex, shorter than width 

 of face, faintly convergent; ocellocular line distinctly longer than 

 postocellar line and more than twice as long as diameter of an ocellus; 

 antenna as long as body, 58-jointed, very slender, attenuate at apex, 

 basal joint of flagellum twice as long as second. 



Thorax strongly compressed, the mesopleurum concave below and 

 joining the sternum in a rounded edge; thorax, especially the pleura, 

 very coarsely and densely punctate; notauli absent; mesoscutum 

 more finely and less densely punctate; scutellum small, subtriangular, 

 elevated, precipitate beliind, more sparsely punctate; propodeum 

 rather flat, reticulate rugose, more coarsely so lateraUy and medially, 

 pleural carinae distinct throughout and lateral carinae represented 



