246 Annals Entomological Society of America [Vol. XV, 



Avhitish pollinose; coxse, trochanters and bases of the femora narrowly, 

 tips of the femora, bases of the tibiae and their tips and the first one or 

 two tarsal joints more or less yellowish or luteous. Hind femora a little 

 produced beneath near the end. Wings a little darkened, yellowish 

 basally. 



Female. vSimilar. Front, except the shining yellowish area above the 

 antennae which is thinly whitish pollinose, brownish, and with reddish 

 brown or grayish pollen. (Neither of my specimens have the front as 

 light colored as indicated in Osten Sacken's description.) One male 

 has the narrow, irregular anterior margin of the third abdominal seg- 

 ment yellow, and the thorax a little more brownish. 



It is probable that the type specimen was teneral. The 

 species was originally described from Quebec, but since that 

 time, except for a single specimen recorded by Williston from 

 California, it has apparently not been recorded. The above 

 description is drawn from eight specimens taken at Orillia, 

 May 4th to 30th, 1921. 



This species cannot well be confused with any other in the 

 genus. 



Brachyopa daeckei Johnson. 



"Length, 6 min. Front black, grayish pollinose, a shining spot 

 above the base of the antennae, yellow, bordered with black; face below 

 the antennse grayish pollinose, sides shining, yellow, with two spots 

 of black, antennae dark yellow, arista brown. Thorax black, grayish 

 pollinose, with five sub-shining lines, the three inner ones slightly 

 diverging, but not reaching the scutellum. Pleurae brownish grayish 

 pollinose, scutellum brown, the apical half much lighter than the base. 

 Abdomen black, shining, hairs white. Legs brown, hairs white, outer 

 half of the posterior femora blackish, tarsi yellowish; halteres yellow. 

 Wings hyaline, veins brown, stigma yellow, anterior cross- vein slightly 

 clouded with brown, tegulae white. 



"One specimen, Castle Rock, Delaware County, Pa., May 19, 1902, 

 collected by Mr. V. A. E. Daecke. This specimen has been referred 

 to as a dark variety of B. media (Psyche, Vol. XVII, p. 230, 1910) but 

 further study in connection with the following species convinces me 

 that it is distinct." (Johnson). 



Brachyopa rufiabdominalis Jones. 



"Length, 7 mm. Face light reddish brown, prominently produced 

 forward, with light, silvery, glistening pollen and very fine white 

 pubescence; slightly concave beneath the antennae; frontal triangle 

 shining, prominent, with or without a median suture. Cheeks a little 

 darker red than the face and with a shining stripe from the eye to the 

 oral margin; sparsely covered with long white pile. Antennae situated 

 on a semi-conical projection, of the same general color as the face, but 

 slightly darker; first joint about half as long as the second, of a slightly 



