Williston.] 308 f:\ray 19, 



Myiolepta varipes Lw., Cent, ix, 79. Virginia. 



Specimens very closely allied to this species, if not the same, I have from 

 "Washington Territory and Kern county, California. The lateral margins 

 of the second segment and basal parts of all the tarsi are luteous. In the 

 male the facial tubercle is prominent, though small. 



MyIOLEPTA BELLA, Sp. nOV. 



$. — Black, shining. Front with very short black pile above; face 

 bare, much produced, in profile briefly convex in the middle of the con- 

 cavity between antennte and tip. Antennal basal joints nearly black, 

 third joint large, orbicular, red, arista black. Thorax with short, black 

 pile, somewhat intermixed with yellowish, longer on the border of the 

 scutellum. Abdomen very shining with short, whitish pile, longer and 

 bushy on the sides ot the second segment. Halteres light yellow. Legs 

 black with black pile. Wings smoky or brownish toward the end. 

 Sligma brown. Long. corp. 7-8 mm. Three specimens, Washington 

 Territory ; Mt. Hood, Oregon. 



FF. — Face more or less produced, extending considerably below the eyes. 

 Either wholly or in large part luteous or reddish, the arista fre- 

 quently pubescent or pilose. 

 G. — Face carinate, abdomen oval Brachyopa. 



Our species may be tabulated as follows : 



a. — Arista distinctly pubescent ; face and antenn* yellow or yellow- 

 ish-red b. 



— Arista bare c. 



b. — Dorsum of abdomen brown *ferruginea. 



— Dorsum of abdomen yellowish-red, with brown incisures, and a 



brownish median line notata. 



c. — Face and front brownish, densely clothed with graj'ish pollen, 



abdomen mostly brown cacua. 



—Face yellow, upper part of front (9) brownish-black, antennae 

 yellow, third joint large ; abdomen reddish-yellow with brownish 

 incisures .' media, sp. nov. 



Brachyopa? notata O. S., Cat. Dipt. 247. White Mts., N. H. (O. 

 Sacken) ; Mt. Hood, Oregon ; Washington Territory ! 



Brachyopa vacua O. S. Canada (O. S.) ; Kern Co. California ! 



A single female specimen from this locality agrees so closely with Baron 

 Osten Sacken's description that I believe it to be the same species. The 

 legs and antennas are, however, more reddish than brownish, and the 

 wings are quite hyaline, more so than the preceding. 



Brachyopa media, sp. nov. 



$. — Face and lower part of front reddish-yellow, the latter projecting 

 rather more than notata; antennjB the same color or a little lighter, the 

 third joint very large, arista brown, j^ellowish at the base, front iu 

 the upper two-thirds black, grayish poUiuose. Dorsum of thoraxnearly 



