E. T. CRESSON, JR. 103 



gin with long white bristles, longest towards the occiput. Occiput blackish, 

 pollinose above; all its bristles white. Antennae light yellow, reaching to within 

 one-half the length of second joint from the oral margin ; third joint rounded at 

 apex ; arista brown. Palpi and proboscis yellow. 



Thorax black, whitish-poilinose, bristles black, sparsely clothed with short 

 white bristle-like hairs, longest on the pleura; dorsum with three faint brownish 

 stripes, its bristles very long. Scutellum like-colored, with the thoracic stripes 

 extending to its apical margin ; four bristles, the lateral pair very long reaching 

 as far as the stigma of wing. 



Abdomen like-colored, with whitish hairs; two brown spots on the dorsum of 

 each segment; bristles on the posterior margin of fourth segment black. Hal- 

 teres reddish-yellow. Squamulfe whitish. 



Legs in general reddish-yellow, but all coxae, the upper surface of the basal 

 half of fore femora, middle third of middle femora and the basal two-thirds of 

 hind femora blackish ; all bristles brownish, the longest on the fore femora. 



Wing with the stigma, adjacent portion of marginal and submarginal cells, 

 small cross-vein, and posterior cross-vein, infuscate; a spot in the stigma, three 

 in the marginal cell, and the extreme bases of the marginal and submarginal 

 cells, hyaline ; spots in the first posterior cell small, except the large conglomera- 

 tion in the apical portion. Length 3 mm. 



One male, Guadalajara, Mexico. Type in Acad. Nat. Sci. Pliila. 

 collection. 



Allied to T. inornata Coq., but the spots on the abdomen (which 

 I do not think is a constant character), the partly blackish legs and 

 the more numerous spots in the submarginal and first posterior cells 

 will distinguish this species. 



TephriiiM I'orpuleiita sp. nov., PI. I, fi.g 4. 



Male. — Head yellow, except the black upper portion of occiput, and the whit- 

 ish face and cheeks. The frontal, two vertical, and two ocellar bristles, black, 

 all others and hairs white. Antennae reaching to within the length of second 

 joint from the oral margin ; arista brown. 



Thorax cinereous, bristles blnck, hairs white. Humeri and a line to base of 

 wing yellowish. Metanotum black. Scutellum apex narrowly yellowish, with 

 four bristles. Halteres light yellow. 



Abdomen cinereous, as broad as long, and broader than the thorax ; hairs 

 white; bristles on the posterior margin of fourth segment black. 



Legs rufous, except the upper side of fore femora, the basal third of middle, 

 and all of hind femora, except the knee, black. Wing brown, as figured. Length 

 .3 mm. 



One male, Cloudcroft, N. Mex. Type in Acad. Nat. Sci. Phila. 

 collection. 



Approaching Ensina despeda v. d. W., but the broad band ex- 

 tending from the stigma to the posterior cross-vein is more distinct, 

 only two large spots in the submarginal cell ; the large spot in the ■ 



TBANS. AM. ENT. SOC. XXXIII. MABCH, 1907. 



