58 PROCEEDIjSTGS of the national museum vol.83 



without discals; genital opening moderately large and elongate, 

 ovipositor short, retracted. 



Legs black, tibiae obscurely reddish ; middle tibia with four or five 

 large bristles on outer front side; fore tarsal segments somewhat 

 flattened but not noticeably enlarged ; claws and pulvilli shorter than 

 last tarsal segment. 



Wings gray-hyaline; fourth vein with a rounded rectangular 

 stumpless bend; third vein haired almost to small cross vein; first 

 posterior cell open far before the exact tip of wing; hind cross vein 

 oblique to fourth, joining it at less than one-third the distance from 

 bend to small cross vein ; last section of fifth vein obviously less than 

 one-half as long as the preceding section; epaulets reddish; costal 

 spine not developed. 



Length, 10 mm. 



Male. — Unknown. 



Remarks. — Described from one female specimen in the United 

 States National Museum labeled Puerto Blest., Chile, December 2, 

 1926 (Shannon). 



The type, a female, is in the experiment station at Lima, Peru ; I 

 have not seen it. 



(8) CUPHOCERA FLAVICORNIS, new species 



Male. — Front at extreme vertex 0.413 of the head width in the one 

 specimen, widening gradually downward ; paraf rontal rather broad, 

 densely gra}^ pollinose and distinctly wider than the yellow middle 

 stripe; ocellar bristles absent; verticals large, the inner pair decus- 

 sate and the outer ones divergent; orbitals none; frontals about 

 seven in the main row with the lowermost bristle situated near the 

 eye well below the middle of second antennal segment, the two upper- 

 most bristles strongly divaricate and reclinate, with two supple- 

 mentary bristles on widest part of front outside the main rows; 

 entire face including cheeks pale in ground color with uniform 

 dense silvery pollen; antennae entirely bright yellow, third segment 

 about twice as long as wide with the apex broadly rounded on front 

 side; second segment about two-thirds the length of third; arista 

 brown, moderately thickened and tapering to tip, penultimate seg- 

 ment elongate; paraf acial with about six small black hairs extend- 

 ing along the margin of qjq and two larger bristles on the lower 

 part; face slightly bulging at middle, the lower border moderately 

 protuberant, its ridges flat with one or two bristles above the vi- 

 brissae; proboscis somewhat exceeding the height of head, apical 

 segment rather thick at base tapering to tip, labella small; palpi 

 absent; cheek with sparse black hairs, about four-fifths the eye 

 height ; back of head gray pollinose faintly tinged with yellow above, 

 clothed with dense pale hairs. 



