NORTH AMERICAN DIPTERA. 173 



front tiliiie destitute of bristles, claws of front tarsi small. Wings hyaline at the 

 apex, the base hlackish-hrown. the outline of this color extending from near tip 

 of auxiliary vein to second vein, then liasaily a short distance, then transversely 

 to fifth vein in base of third posterior cell, then curving to hind margin of wing 

 at apex or la.st third of axillary cell ; the brown fills base of discal cell to sniiill 

 cro.ssvein. Length 4-6 mm. 



California ! Three specinioiis in April. 



27. Anthrax vaiia n. sp. — Differs from scitnla only as follows: Face black 

 pilose; in-oboscis one-half lengtli of the labellse beyond the epistoma; first an- 

 teunal joint twice as long as the second ; occiput yellowish tomentose. Thorax 

 yellowish tomentose, its sides yellowish pilose, the bristles black; breast black 

 pilose ; scutellura yellowish tomentose, the bristles black : tomentuni of abdomen 

 black, that on the first segment and bases of the second and third white, on base 

 of the fourth and nearly all of the fifth and sixth yellowish, mixed with black I 

 tomentum of venter black, that on first two segments white; tomentum of legs 

 black ; outline of brown of wing not well defined, extending from tip of auxiliary 

 vein to apex of discal cell, then curving to apex of anal cell. Length 7 mm. 



California ! Two specimens. 



28. Aiitlira.v foler Wied. (Syn. ? A. florid ana Macq. •) — Differs from scitnla 

 as follows: Tomentuna of front and face black and golden-yellow; epistoma 

 retreating; base of third autennal joint subglobular. Thorax velvet black and 

 golden-yellow tomentose, its sides and the pleura golden-yellow pilose; tomen- 

 tum of scutellum goldeu -yellow. Abdomen black and golden-yellow tomentose, 

 sides of first segment golden-yellow pilose, of the .second, third and fourth" seg- 

 ments black ; venter black and golden-yellow tomentose. Legs black toniento.se ; 

 outline of brown of wings nearly straight, extending from last eighth of first 

 vein to apex of axillary cell. Length 7 mm. 



Kentucky, Georgia, Venezuela (S. A.) ! A single specimen from 

 the latter locality received from V. von Roder, Hoym, Germany. 



29. Aiitlira.Y !<>yrtis n. sp. — Front black, below reddish, golden -yellow 

 tomentose and l)lack pilose. Face reddish, the middle sometimes black, very 

 much jJToduced below, golden-yellow tomentose; proboscis projecting one-third 

 its length or less beyond the epistoma; first joint of antennre and sometimes the 

 second reddish; third joint black, elongate-conical at its base; occiput white 

 tomentose, that in the middle above yellowish. Thora.x black, yellowish tomen- 

 tose, a white tomentose stripe extends from humeri to hind angles of thorax, 

 passing above root of each wing; front end of thorax yellowish jjilose; bristles 

 of hind angles reddish ; pleura white pilose, that next the head yellowish ; scu- 

 tellum black, yellowish tomentose, that at the base white; l)ristles reddish. 

 Abdomen black, yellowish tomentose, that on bases of second and tliird .segments 

 usually white, on ajiices of second, third, fourth and fifth segments black. mo.st 

 extended on the second segment and sometimes wanting on the fourtli and fifth ; 

 sides of first two segments abundant white and yellowish pilose, a cluster of 

 black pile on hind angles of second segment; sides of other segments mixed 

 black and yellowish pilose, rather sparse and dei)ressed ; dorsum of abdomen 

 with numerous black ]>ile; venter black, yellowish tomentose. Legs yellowish, 

 ycllowisli tomentose, front tibite provided with bristles; tarsi black toward the 



