NORTH AMERICAN DIPTERA. 177 



38. Aiitln'iix f'liinida ii. sp.— Front black, reddish tonientose and hhick 

 pilose; fuee obscure reddish, much produced below, reddish tonientose; proboscis 

 projects one fourth its length or less beyond epistonia : first two joints of an- 

 tennfE reddish, the third black, short-conical at its base ; occiput white tomen- 

 tose. Thorax black, golden-yellow tonientose, sides and front end yellowish 

 pilose, bristles of hind angles yellowish; pleura yellowish pilose; scutelluru 

 black, yellowish tomentose. bristles yellowish. Abdomen black, the apex some- 

 times reddish, golden-yellow tomentose ; pile of sides yellowish ; venter black, 

 yellowish tomentose. Legs reddish, yellowish tomentose, front tibise provided 

 with bristles; tarsi black toward the apex, claws of front tarsi well developed. 

 Wings hyaline at the apex, the base brownish, the outline of this color not well 

 defined, the brown being gradually evanescent posteriorly, leaving an indistinct 

 border to the veins traversing the more hyaline part, except the apices of veins 

 two to fonr; brown fills anal and axillary cells to their very tips, and the discal 

 cell to beyond small crossvein. Length 5-7 mm. 



California ! Nine speciiiiens. 



39. Aiitlirax iiupiger n. sp.— Front black, yellowish tomentose and black 

 pilose; face reddish, in middle above black, much produced below, yellowish 

 tomentose; proboscis projecting about length of its labella beyond epistonia; first 

 two joints of anteunje of nearly an equal length, reddish; the third Wack, very 

 elongate-conical at its base : occiput yellowish tomentose. Thorax black, yel- 

 lowish tomentose and pilose, bristles of hind angles yellowi.sh ; pleura yellowish 

 pilose ; scutellum black tomentose and bristles yellowish. Abdomen black, sides 

 broadly reddish, yellowish tomentose; sides of abdomen sparse yellowish pilose; 

 venter reddish, yellowish tomentose and pilose. Legs yellowish, yellowish to- 

 mentose, front tibiae destitute of bristles; tarsi toward the tips blackish, claws 

 of front tarsi minute. Wings hyaline at the apex the base smoky yellowish, the 

 outline of this color indistinct, extending from near apex of the auxiliary vein 

 obliquely nearly to small crossvein, then transversely to discal cell, then curving 

 inward through bases of third and fourth posterior cells, reaching hind margin 

 at tip of penultimate vein ; a brown cloud on veins at bases of second subniar- 

 ginal, first, third and fourth posterior, and the discal cell, and sometimes on that 

 at base of .second posterior cell. Length 8-10 mm. 



Arizona ! Two specimens (Keen). 



40. Aiitlirax dif^par n. sp.— Wholly black. Front yellowish tomento.se 

 and black piio.se; face very much produced below, yellowish tomentose; pro- 

 boscis not projecting beyond epistoma ; first joint of antennne nearly twice as 

 long as the second, third joint elongate-conical at its base; occiput yellowish 

 tomentose. Thorax yellowish tomentose, the sides and front end yellowish 

 pilose, middle of dorsum black pilose, bristles of hind angles reddish; pleura 

 yellowish and white pilose; scutellum yellowish tomentose, bristles black. Ab- 

 domen black tomentose, base of second and third, and nearly all of the fifth 

 segment yellowish tomento.sc ; jiile of sides of first segment abundant, whitish ; 

 that on sides of remaining segments sparse, depressed, black ; in front angles of 

 second and third segments white ; venter black tomentose. Legs bhiek, tomen- 

 tose, front tibise destitute of bristles, claws of front tarsi minute. Wings smoky 

 hyaline, the apex purer hyaline, costal and first basal cell wholly, basal two-thirds 

 of marginal cell and second basal cell, except small spot in apex, dark brown ; a 

 brown cloud on veins at bases of second submarginal, second and third posterior 

 cells. Length 8 mm. 



Florida ! Two specinien.s (Mori'ison). 



TRANS. AMEK. ENT. SOC. XIV. (23) OCTOBER. 1887. 



