THE CANADIAN ENTOMOLOGIST 361 



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 \ellow, 

 anterior cross-\-ein slighth' clouded with brown, teguhv white. 

 Length (3 mm. 



One specimen, Castle Rock, Delaware Co., Pa., May 19, 

 1902. colhected by Mr. V. A. E. Daecke. Type in the author's 

 collection. 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 con\'inces me that it is 

 distinct. The thoracic lines and abdominal characters seem very 

 constant in this genus. 



Brachyopa diversa, sp. n. 



Face and front yellowish, whitish pollinose, a shining spot 

 above the antennae and n shining browm streak across the cheek, 

 occiput black, grayish pollinose, finely punctate, antennae dark 

 \ellow, arista black. Thorax black, brownish pollinose, with four 

 shining black lines and short di\-erse lines, the two dorsal lines 

 not reaching the scutellum, but a short median line extending 

 forward from the scutellum, the subdorsal line interrupted by a 

 prominent sutural line, short oblique lines extending anteriorly 

 from the posterior ends of the subdorsal lines towards the ends 

 of the dorsal lines, humeri and a large spot above the base of the 

 wing shining black, pleura grayish pollinose wdth white hairs, 

 scutellum dark brown. Abdomen: first segment grayish pollinose, 

 second segment grayish pollinose except a median and large, round 

 lateral spots of shining black, third and fourth segments shining 

 l)Iack, excepting the posterior pollinose margins. Legs black, 

 bases and tips of the femora and tibiae and the tips of all of the 

 first three tarsal joints yellowish. Halteres white, wings hyaline, 

 veins brown, stigma yellow, anterior cross-\ein and the angles of 

 the discal cell clouded Avith brown, false \'ein prominent, extend- 

 ing to the end of the discal- cell, apical portion of the fourth vein 

 with two stubs, one at the obtuse angle, the other slightly anterior 

 and extending into the first posterior cell, a stub also extending 

 into the discal cell, tegula' white. Length 7 mm. 



One specimen near Shattuck Inn, Jaffrc\-, X.H., June 18, 1917, 



