172 D. W. COQUILLETT. 



bristles largely or wholly reddish ; pleura pule yellowish pilose; sen tell nm yel- 

 lowish tomeiitose, bristles black. Abdomen pale yellowish tomentose, mid- 

 dle of dorsum largely black tomentose; sides black pilose, first segment and 

 bases of the second and third, pale yellowish pilose; venter on first four seg- 

 ments white tomentose and pilose, that on remaining segments yellowish and 

 black. Legs yellowish and black tomentose, front tibise provided with bristles, 

 claws of front tarsi minute; apex of wings hyaline, the base brown, the outline 

 of this color extending from near apex of first vein to base of second suhmar- 

 ginal cell, then in and out through base of second ])Osterior cell, reaching hind 

 margin of wing beyond tip of penultimate vein, forming large teeth at each vein 

 it crosses, that on vein between third and fourth posterior cells nearly reaching 

 hind margin of wing. Length 1.5 mm. 



Washington Territory !, California ! Two specimens. 



2,">. Anthrax ciirta Loew. — "Wholly deep black, opake. Legs concolor- 

 ons. Head spherical; prothorax, first abdominal segment wholly, and the last 

 three segments largely, white pilose; four corners of the thorax fulvous pilose; 

 rest of body clothed with black pile and tomentnm. Length of body 43 lines 

 (^ little over 9 mm.) of the wings, 4^^ lines. 



" Deep black, opake. Head concolorous, spherical, face not prominent; front 

 much narrowed toward the vertex, clothed with very short black pile and black 

 tomentum ; tomentum of face black, varied with white and brow!iish ; antennse 

 black, first two joints closely black pilose; proboscis not prominent; occi{>ut 

 snow-white tomentose, near the vertex short white pilose. Thorax clothed with 

 short black pile and black tomentum ; prothorax white pilose; humeri and pos- 

 terior angles fulvous pilose; posterior margin short fulvous pilose; scutellura 

 black tomentose and black pilose, posterior margin fulvous tomentose. First 

 segment of abdomen wholly snow-white pilose, second, third and fourth seg- 

 ments black tomentose, towards the sides, and the sides themselves, closely black 

 pilose; last three segments in centre of dorsum black tomentose, toward the 

 sides snow-white tomentose, the margins snow-white pilose; venter blackish 

 fuscous, first two segments snow-white tomentose, the others black tomentose. 

 Legs wholly black, posterior tibipe above closely setulose. Wings hyaline, basal 

 half black; termination of black apex of auxiliary vein obliquely to the fourth 

 posterior cell, thence parallel with the hind margin to a.xillary angle, where the 

 black color emits a tooth. [Dipt. Amer., Cent, octava, p 22.) California." 



Unknown to me ; the above is a translation of Loew's original 

 description. 



26. Aiitlirax scitiila n. sp. — Wholly black. Front yellow and white to- 

 mentose and black pilose; face slightly produced below, yellowish tomentose; 

 proboscis not projecting beyond epistoma; first two joints of antennse of nearly 

 an equal length, third joint short conical at its base; occiput white tomentose. 

 Thorax coppery tomentose, the dorsum black pilose, sides white pilose, front end 

 and pleura yellowish pilose ; bristles of hind angles reddish ; scutellum coppery 

 tomentose, bristles black and reddish. Abdomen black tomentose, that on apex 

 of first and base of third segment whitish, that on the fourth and following seg- 

 ments largely yellowish, sometimes having a coppery tinge; pile on sides of first 

 two segments abundant, whitish ; that on remaining segments sparse, mixed 

 yellowish and black; venter yellowish tomentose. Legs yellowish tomentose, 



