E. T. CRESSON, JR. 287 



Alamogordo, New Mex. Two 9 . Type, coll. Acad. Nat. Sci. 

 Phila. 



The small size of this species is very noticeable. It approaches 

 E. spoUata L\v., but the tibiae are not so dark, and the stigmatic 

 spot extends distinctly to the fourth vein. The metallic coloring 

 may not be reliable, but the coppery scutellums of these specimens 

 are very vivid. The coloring of the feet will separate this from 

 pusio Lw., notata Wied. and costalis Fab. ; its yellow face and 

 entirely yellow legs will separate it from apicalis Will. 



Euxesta uotatn Wied. 



Alamogordo, New Mex. One % . 



EiixeMta piilchella sp. nov. (PI. VI, fig. 11). 



Head entirely black, but front somewhat dark brownish, not projecting much 

 beyond the eyes at the anteunte, orbits parallel, with a pollinose spot on each 

 about midway between verte:S and autennse, otherwise shining; two frontal 

 bristles; vertex greenish black. Face shining, of a blui-sh color, pollinose about 

 the antennse base and along the brownish orbits. Clypeus projecting about as 

 far as the front. Cheeks shining. Palpi and proboscis black. Occiput slightly 

 pollinose. Antennae dark brownish; third joint rounded, slightly longer than 

 wide ; arista bare, black. 



Thorax green, dorsum pollinose ; pleura shining; bristles normal. .S'cutellum 

 shining green, convexed, pointed. Squamulse white. Halteres cream colored. 



Abdomen shining ; first segment green ; second and third bright metallic cop- 

 per color; the fourth and fifth entirely chrome-yellow, with the lateral angles 

 and venter tinged with copper. Fiist section of ovipositor brownish yellow, as 

 long as the last two segments and one-half as wide as the abdomen. 



Legs mostly black ; hind metatarsi yellow ; the remaining tarsi and those of 

 the others, brownish. 



Wings with a large apical spot including the apices of the marginal and sub- 

 marginal cells and diffusing into the first posterior cell ; stigma black and costal 

 cell entirely brownish ; third and fourth veins converging towards apes. Length 

 2i mm. 



Alamogordo, New Mex. One 9 . Type, coll. Acad. Nat. Sci. 

 Phila. 



A very striking species. Closely allied to E. notata Wied., from 

 which it differs in its smaller size, nearly one half as long, in the 

 coppery second and third, and the entire fourth segments. The 

 front is more black, hardly a distinguishable brown. 



Euxesta stigmatias Lw. 



Guadalajara, Mex. One 9 . 



Chsetopsis senea Wied. 



HighroUs, New Mex. One 9 . 



TEANS. AM. ENT. SOC. XXXII. OCTOBER, 1906. 



