262 Revision of the Bombylid Genus Aphoebantus. 



with crossbands of rather long erect pile on hind end of each seg- 

 ment, the sides quite abundant pilose. Eyes narrowly separated on 

 the front. Hypopygium very small, not dilated below, almost con- 

 cealed within the last abdominal segment. 



Length 7 to 10 mm. San Diego county, Cal. A single male and 

 female, in May. 



Although differing from each other somewhat in the coloring of 

 the pile and tomentum, still it is highly probable that these two 

 forms are the opposite sexes of the same species ; they were cap- 

 tured at the same time and place, are essentially alike in structure, 

 and they are the only forms known to me in which the pile of the 

 face is golden-yellow. 



Aphoebantus abnormis n. sp. — Female. Black, the tibiae and 

 tarsi reddish. Front yellowish-white tomentose and reddish or 

 yellowish-white pilose ; face white tomentose and pilose. Proboscis 

 not projecting beyond the oral margin. Antennas with the first two 

 joints sparse yellowish-white pilose; styliform portion of the third 

 joint equal in length to the thickened basal part. Occiput white 

 tomentose, that above yellowish. Thorax yellowish-brown tomen- 

 tose, that on the sides and front end white; bristles reddish ; pleura 

 white tomentose, the pile white and yellowish. Scutellum opake, 

 yellowish-brown tomentose, the bristles numerous, reddish, some of 

 them situated on the upper surface. Abdomen yellowish-brown 

 tomentose, that on extreme apex of each segment lighter, apex of 

 each segment with a crossband of short reddish pile, elsewhere the 

 dorsum is almost destitute of pile ; sides of abdomen short sparse 

 reddish pilose, that on the first two segments longer, more abun- 

 dant, white ; venter white tomentose and sparse yellowish-white 

 pilose. Legs white tomentose, that on the tibiae mixed with yellow; 

 the bristles reddish ; hind femora each with four bristles but no 

 hairs below, middle femora each with three or four bristles in front 

 and a fringe of short pile behind. Knob of halteres light yellow, the 

 stalk dark yellow. Wings hyaline, apex of the subcostal cell yel- 

 lowish. 



Male same as the female except the sexual characters. Eyes 

 meet each other for some distance on the front. Hypopygium un- 

 usually large, laterally compressed, more than half as large as the 

 abdomen, divided lengthwise into an upper and a lower piece, the 

 latter scarcely one-fourth as large as the upper one which is curved 

 downward ; apex of each piece bifurcated, the prongs on one piece 

 projecting toward those on the opposite piece ; hind end of upper 

 piece provided with an elongated, nearly perpendicular piece of a 

 jet black color narrowly bordered with white ; hypopygium opaque, 



