Revision of the Bombylid Genus Aphoebantus. 257 



men \ T ellow except sometimes a light brownish spot in middle of 

 segments 2, 3 and 4, middle of segment 5 and greater portion of 6 

 and 7 ; hind margins of segments 2, 3 and 4 usually white ; to- 

 mentum of the abdomen pale yellowish, that on the first segment, 

 on hind margins of the remaining segments, and on sides of abdo- 

 men near the base, white ; pile of abdomen white, very sparse and 

 short, longer and more abundant on the sides ; venter pale yellow, 

 white tomentose. Legs light yellow, the front femora laregly 

 brown, tomentum and bristles white, hind femora each with 3 or 4 

 bristles but no long hairs below. Wings wholly hyaline. Knob of 

 halteres sulphur yellow, the stalk white. 



Male, same as the female, the eyes being as widely separated on 

 the front ; h3'pop\'gium ver\- small. 



Length 3.o to 5 mm. San Diego county, Cal. Three males and 

 five females in May. 



Aphoebantus pavidus Coquillett. — Female. Black. Front 

 densely white tomentose, destitute of erect pile ; face densely white 

 tomentose and sub-depressed white pilose. Proboscis not project- 

 ing beyond the oral margin. Antenna? with the styliform portion 

 of the third joint two-thirds as long as the thickened basal part. 

 Occiput white tomentose. Thorax in front white tomentose, else- 

 where yellowish tomentose, the bristles also yellowish ; pleura gray 

 pollinose, its pile and tomentum white. Scutellum opaque, yellow- 

 ish tomentose, that on the margin white, the bristles yellowish. 

 Abdomen yellowish tomentose, and with a crossband of white 

 tomentum at the base of each segment except the first, where the 

 band is at the apex ; dorsum of abdomen nearly destitute of pile, 

 that along the sides rather abundant and white ; venter snow- 

 white tomentose and pilose. Legs white tomentose, the bristles 

 reddish ; hind femora each with two bristles and a few long hairs or 

 weak bristles below; middle femora each with a single bristle in 

 front and a fringe of white pile behind. Knob of halteres yellowish- 

 white, the stalk darker yellow. Wings hyaline, apex of subcostal 

 cell 3 r ellowish. 



Male differs from the female as follows: Front with sparse* 

 sub-depressed white pile. Tibiae usually yellowish. E\-es meet each 

 other for a short distance on the front. Hypop\'gium large, not 

 dilated below, slightly longer than the last two abdominal seg- 

 ments, its sides and lower surface white tomentose. 



Length 3 to 6 mm. Los Angeles, San Diego and Kern counties, 

 Cal. Three males and seven females, in Mav and June. 



I formerly regarded this as being a mere variety of cervinus 



