96 



E. T. CRESSON. 



Coelioxys deplaiiata. — 9 • — Robust, black, opaque, head and thorax 

 coarsely and confluontly punctured, a small smooth impunetured space on 

 each side of ocelli; lower portion of face and the clypeus covered with a very 

 short appressed pale ochraeeous pubescence scarcely hiding the sculpturing, 

 but longer on tip of clypeus; on upper part of face the pubescence is longer, 

 radiating around the lower ocellus, which is placed in a shallow depression; 

 cheeks thinly covered with short white pubescence, the posterior margin of 

 occiput fringed with pale ochraeeous hairs; eyes with very short pubescence; 

 line on anterior margin of thorax continued beneath and dilated into two 

 spots on anterior middle of mesothorax, a line over tegula? and line at base 

 of scutellum and behind, composed of short, appressed, pale ochraeeous, scale- 

 like pubescence; sides of metathorax with long pale pubescence, on pleura 

 beneath it is short and white; scutellum (fig. 1) 

 broadly rounded behind, lateral teeth large, sub- 

 acute compressed laterally, directed slightly out- 

 wards; immediately in front of tegulse a thin 

 sharp subsinuate transverse carina; tegulse testa- 

 ceous; wings dusky on apical margin; legs pale 

 ferruginous, coxse black and more or less densely clothed with short white 

 pubescence; abdomen shining, deeply not confluently punctured, basal corners 

 of first segment, and narrow apical margins of segments 1 — 5 broader laterally, 

 clothed with short dense pale ochraeeous scale-like pubescence; second and 

 third segments each with a deeply impressed transverse line on the middle; 

 sides and base of first segment sometimes more or less red; apical segment 

 (fig. 4) finely and densely punctured, opaque, short, broad at base and gradually 

 narrowed to tip which is rounded and margined, a fine central longitudinal 

 carina on the entire length of the segment, on each side of which at the apex 

 the surface is depressed; venter deeply punctured, more or less red at base, a 

 spot on middle of first segment and the apical margin of the segments 2 — 5 

 narrowly, of short white pubescence; apical segment (fig. 3) broad, incurved, 

 a little longer than the upper segment, gradually narrowed to the tip which' has 

 a short subacute appendage (fig. 2, apex in profile). Length .48 inch. 



Ilah. — Kansas, Colorado, (Hidings). Three specimens. This is 

 nearly allied to aperhi in the forujation of the apical segments of 

 the abdomen, but otherwise is quite distinct. 



Ceelioxys Comstocltii. — 9- — Robust, opaque black, coarsely and con- 

 fluenllv punctured; vertex, face and clypeus clothed with dense pale ochra- 

 eeous pubescence, long on vertex and short on base of clypeus; cheeks, thorax 

 beneath and legs with short appressed white pubescence; mandibles piceous; 

 eyes with short pubescence; pro- and metathorax with long pale ochraeeous 

 pubescence; scutellum (fig. 1) coarsely sculptured, broadly rounded behind, the 

 lateral teeth long, subacute and slightly incurved; transverse carina before 

 tegulee not conspicuous, being covered by the pubes- 

 cence; tegulae piceous; wings rather broadly fuligi- 

 nous on apical margin; anterior tibige and all the 

 tarsi more or less ferruginous, spines on anterior 

 3 "* coxse very short; abdomen robust, shining, sparsely 



punctured, more deeply so on basal segment which has a patch of pale ochra- 

 eeous pubescence on each basal corner; a narrow fringe of pale pubescence on 



