Revision of the BonihvlicI (reiius AphoehmitiiH. 261 



not dilated l)el()\v, about three fourths as long as the last two ab- 

 dominal segments united. 



Aphoebaxtus DESERTi'S n. sp. — Female. Black. Front and face 

 sparse yellowish tomentose and erect black pilose. Proboscis not 

 projecting beyond the oral margin, .\ntenna? with the first two 

 joints sparse black pilose; styliform portion of the third joint once 

 and a half as long as the thickened basal part. Occiput whitish 

 tomentose. Thorax yellow tomentose and sparse black pilose, that 

 on the front end yellowish, bristles reddish and lilack ; pleura gray 

 pollinose and white tomentose, its pWe yellowish and white. Scu- 

 tellum \'ellowish tomentose, the bristles reddish. .Vbdonien with 

 alternate crossbands of black and whitish tomentum, the dorsum 

 with scattered quite long black pile, the sides with denser white 

 pile ; venter white tomento.se and pilose. Legs with the femora 

 whitish tomentose, the bristles reddish; hind femora each with 

 from one to five bristles and numerous long hairs below, middle 

 femora each with four or five bristles below and with many long 

 hairs behind. Knob of halteres light yellow, the stalk brown. 

 Wings hyaline, ajie.x of the subcostal cell yellowish. Length 9 to 10 

 mm. San Diego county, Cal. Two females, in May. 



.Vi'HoEHA.NTrs CAi'AX n. s]). — Female. Black, tibia- and base of 

 tarsi yellowish. Front sparse yellow tomento.se, black and reddish 

 pilose, the latter situated next the antennje ; face destitute of to- 

 mentum, golden-yellow pilose. Proboscis Jiot i)rojecting l)eyond the 

 oral margin, .\ntennie with first two joints sparse lilack ])ilosc; 

 styliform i)ortion of the third joint equal in length to the thickened 

 l)asal part. Occiput yellowish tomentose. Thorax yellow tomen- 

 tose and s])arse yellowish pilose, the bristles reddish ; jjleura gra\^ 

 pollinose and white tomentose, the pile yellowish and white. Scu- 

 tellum 3'ellowish-white tomentose, the bristles also yellowish white. 

 Abdomen with alternate crossbands of yellowish-white and black 

 tomentum, the dorsimi almost destitute of erect pile, the sides very 

 sparse pilose exce]it on the first two segments where it is abundant, 

 Avhite; venter white tomentose and pilose. Legs yellowish-white 

 tomentose, the bristles reddish ; hind femora each with four bristles 

 but no long hairs below, middle femora each with two bristles in 

 front and a fringe of rather long pile behind. Knob of halteres 

 yellowish-white, the stalk brown. Wings hN^aline, apex of the sub- 

 costal cell yellounsh. 



Male differs from the female in having the pile of the front 

 golden-yellow, of the first two antennal joints reddish, face sparse 

 yellowish tomentose, pile of lower part of occiput white, tomentose 

 crossbands of abdomen vellow and whitish, dorsum of abdomen 



