NORTH AMERICAN DIl'TKRA. 185 



and sciitellum yellowisli white toinentose, bristles white, pile of front -end and 

 sides of thorax, aud of pleura, yellowish white, that on the breast and coxa? 

 mixed black and yellowish. Abdomen apparently wholly yellowish white to- 

 mentose, pile of dorsum sparse, mixed black and whitish, that on sides abun- 

 dant, white; venter white tomentose and pilose. Legs mixed black and pale 

 yellow tomentose, front tibise provided with bristles, claws of front taisi well 

 developed. Wings hyaline at apex, the base blackish brown, the outline of this 

 color not well defined, extending from apex of auxiliary vein transversely to 

 apex of fourth posterior cell, leaving all of the anal, axillary, fourth posterior 

 aud discal cells in the brown, which color fills base of first posterior cell to apex 

 of discal cell, and also fills extreme base of second posterior cell. Length y nun. 



San Diego County, Cal. A single specimen in May. 



69. A. laciiiiHris u. sp. — Black, lower half of front usually, face, first two 

 antennal joints, apex of abdomen broadly, venter, femora and tibije, reddish. 

 Front golden-yellow tomentose and black pilose; face greatly produced below, 

 mixed yellowish white and golden-yellow tomentose and short black [)il()se. An- 

 tennae having the first joint twice as long as the second, the third joint elongate- 

 conical at its base. Proboscis projects the length of its labellse beyond the oral 

 margin. Occiput white, or yellowish white tomentose, that in the middle aliove 

 golden-yellow. Thorax yellowish or golden-yellow tomentose, bristles whitish, 

 or deep yellowish, pile of front end, sides, pleura and breast yellowish white, 

 that on the coxa? golden-yellow and black. Scutellum yellowish white tomen- 

 tose, bristles whitish. Abdomen yellowish white tomentose, that on apex of 

 second and third segments in the middle black, that on apex of last three seg 

 ments golden-yellow; pile on dorsum very sparse, that on the hind part black, 

 on the sides quite abundant, white, becoming yellowish or black toward the 

 apex; venter white tomentose and white or black pilose. Legs mixed black and 

 golden-yellow tomentose; front tibiae provided with numerous bristles, claws of 

 front tarsi well developed. Wings hyaline at apex, the base dark brown, that in 

 second basal, and bases of anal and axillary cells light yellow: base of third 

 vein also bordered with light yellow; outline of the brown color extends from 

 apex of auxiliary vein obliquely to the second vein, then basally a short distance, 

 then transversely to last fifth of discal cell, then basally to a point slightly 

 beyond the small cross-vein, then curving through third posterior cell to or 

 slightly beyond the middle of the fourth posterior cell on the penultimate vein : 

 whole of anal cell brown, apical half of axillary cell usually lighter brown or 

 hyaline; brown does not fill discal cell to small cross-vein; sometimes a brown 

 cloud on veins at bases of second submarginal and second posterior cells. 

 Length 8 — 11 mm. 



San Bernardino County, Cal. Eighteen specimens in July. 



70. A. lepiflota O. S. 



Originally described from Mexico. I captured a single specimen 

 in San Bernardino County, Cal., in July. 



72. A. ienoNtratoitles n. sp.— Black, the lower part of front, face, first 

 two antennal joints, scutellum, sides of abdomen broadly, venter, except at base, 

 reddish; legs piceous. Front pale yellow tomentose and black piloi^e. face 

 slightly produced below, white tomentose and pilose, oral margin in front black 



TRANS. AM. ENT. .SOC. XIX. (24) JULY, 1892. 



