296 PROCEEDINGS OF THE NATIOITAL MUSEUM vol.84 



and including a series of 7 females and 5 males without locality but 

 probably from Nevada. It is an autumn-flying species, most of the 

 collection dates being in September, 



40. EXETASTES ZELOTYPUS Cresson 



Plate 16, Figure 12; Plate 17, Figure 40; Plate 18, Figures 50, 68; Plate 



21, Figure 112 



Exetastes zelotypus Cresson, Proc. Acad. Nat. Sci. Philadelphia, 1878, p. 370; 

 female, male. 



This and the three next following species form a group characterized 

 by short, stout antennae, strongly pectinate claws, black head and 

 thorax, usually with largely ferruginous abdomen, and deeply infumate 

 wings. 



Female. — Length 13 mm, antennae 9 mm. 



Head little broader than thorax and only slightly more than twice 

 as broad as thick; occiput broad and rather deeply concave; temples 

 strongly convex, finely and rather densely punctate; pubescence 

 unusually dense; frons shallowly concave, densely punctate; face 

 densely punctate, narrowly and only slightly elevated medially, 

 laterally convex below and concave above, twice as broad as long; 

 clypeus nearh'^ as broad as face, two-thirds as long as broad, the short 

 basal portion strongly convex, the long apical portion flat or wealdy 

 concave, apex medially emarginate and with a more or less distinct 

 longitudinal groove; cheeks in front view very short, straight, their 

 extended angle sharply acute; malar space barely half as long as basal 

 width of mandible; junction of occipital and hypostomal carinae dis- 

 tant from mandible by about basal width of latter; mandible more 

 than twice as long as broad at base, not strongl}^ narrowed toward 

 apex; eyes moderately convex, as long as superior width of face, 

 strongly convergent below; postocellar and ocellocular lines subequal 

 and about three times as long as diameter of an ocellus; antenna about 

 45-iointed, stout, rather abruptly tapering at apex, basal joint of 

 flagellum hardl}^ twice as long as second and hardly four times as long 

 as tliick at apex, second less than twice as long as thick. 



Thorax stout, densely punctate, metapleurum confluently so, 

 rugose below, mesoscutum and scutellum more finely and sparsely 

 punctate and shining; notauli absent; scutellum moderately convex; 

 propodeum moderately convex, reticulate rugose, finely so medially, 

 coarseh^ so laterally, without trace of apical carinae, spiracles large, 

 elongate, situated more than half then- length above the distinct 

 pleural carinae. 



Legs rather >^tout, hind femui' three-fourths as long as tibia; inner 

 hind calcarium more than half as long as basitarsus; apical joint of 

 tarsus nearly as long as third joint. 



