170 D. W. COQUILLETT. 



to hind angles of thorax, passing above root of each wing; bristles on hind an- 

 gles reddish, the others sometimes black ; pleura yellowish pilose, that below 

 root of each wing white; scutellum yellowish tomentose, that at the base white; 

 bristles black or reddish. Abdomen yellowish tomentose, paler or white on the 

 last three segments and bases of the second and third ; pile on sides of first two 

 segments abundant, white ; that O'n sides of other segments and dorsum of ab- 

 domen posteriorly sparse and chiefly black ; venter yellowish tomentose. Legs 

 yellowish tomentose ; front tibia destitute of bristles, claws of front tarsi minute. 

 Wings hyaline, costal, first basal and proximal half of marginal (except some- 

 times a triangular hyaline spot in base of the latter) brown ; a brown cloud on 

 veins at bases of first subuiarginal, first, third and fourth posterior cells. Length 

 6 mm. 



California ! Twelve specimens in October. 



18. Anthrax eaprea n. sp. — Black, the legs reddish. Front above brown- 

 ish, below white tomentose ; face retreating below, white or yellowish tomentose ; 

 proboscis projects from one-fourth to one-half its length beyond epistoma ; first 

 joint of antennse about three times as long as the second, base of the third joint 

 conical ; occiput white tomentose, that in middle above yellowish. Thorar 

 mixed white and yellowish tomentose, sometimes with a white tomentose cross- 

 band on the front edge extending to hind end of thorax above root of each wing ; 

 bristles on hind angles reddish ; pleura yellowish pilose, that beneath root of 

 each wing white; scutellum yellowish tomentose, that at the base white; bris- 

 tles reddish. Abdomen yellowish tomentose, that at base of each segment white, 

 most extended on the second segment ; sides of first two segments abundant 

 white pilose, sides and dor.sum of other segments sparse black pilose; venter 

 yellowish tomentose. Legs yellowish tomentose, front tibise. destitute of bristles, 

 claws of fronr tarsi small. Wings hyaline, costal and first basal cell, and some- 

 times proximal half of marginal cell largely yellowish ; a brown cloud on veins 

 at bases of first submarginal, first, third and fourth posterior cells, and sometimes 

 on those at bases of disc.al and second submarginal cells ; usually a stump of a 

 vein projects into first submarginal cell from vein at base of second submarginal 

 cell. Length 8-10 mm. 



California! Nineteen specimens in October. 



19. Autlirax iuatirata n. sp. — Front black, next the antenna; reddish 

 tomentose, black or yellowish pilose; face yellowish, much produced below, yel- 

 lowish tomentose; proboscis projects one-half its length or less beyond the epis- 

 toma ; first two joints of antennae yellowish, the third black, subglobular at its 

 base, the styliform portion very slender and linear; occiput yellowish tomentose. 

 that in the middle above more reddish. Thorax black, yellowish pilose and red- 

 dish tomentose, the usual bristles reddish; pleura yellowish pilose; scutellum 

 black, reddish tomentose, the base narrowly white tomentose, extending on hind 

 end of thorax to root of wings; bristles reddish. Abdomen black, the sides red- 

 dish, which color is most extended posteriorly ; tomentum of abdomen yellowish, 

 that on segments 3-6 in the male in certain lights shining like burnished gold, 

 not at all shining in the female ; pile of sides of first two segments yellowish, 

 abundant ; that on sides and hind edges of last two or thi-ee segments very sparse 

 and mostly black ; venter reddish, its tomentum yellowish, but sometimes largely 

 black. Legs yellowish, front tibise provided with bristles; tarsi black towards 



