THE CANADIAN ENTOMOLOGIST. 241 



third and tip of the second joint narrowly banded with yellow. Thorax 

 velvety black, with sparse, yellowish hairs ; pleura grayish, scutellum 

 black, the margin bearing a row of yellow hairs. Abdomen black, all 

 excepting the first segment with a wide posterior marginal band of yellow, 

 venter entirely yellow. Femora and coxae black, tips of the femora and 

 the tibia? and tarsi yellowish, the outer portions of the tibise and tarsi more 

 or less brownish, but usually absent on the middle tibia; ; basal half of the 

 knobs of the halteres blackish, the remainder white. Wings hyaline. 

 Length of body 3 mm., proboscis 1 mm. 



9. — Head light yellow or whitish; proboscis, the ocellary tubercle 

 and third joint of the antenna; black, base of the third joint very narrowly 

 marked with yellow, and the first and second joints yellowish or brownish. 

 Thorax dull yellowish gray, the scutellum and pleura somewhat lighter, 

 with a few whitish hairs. Abdomen a light yellowish colour, with sparse 

 white hairs, the basal half of the second, third, fourth and fifth segments 

 a dark brown or black ; in drying, the abdomen often contracts so that 

 only the brown of the second segment is visible. Legs yellow, the base 

 of the front femora and the outer half of all the tarsi dark brown or black. 

 Halteres white, the basal portion of the knobs tinged with brown. 



Jamesbury and Riverton, N. J., July 3-6. 



I first captured a male of this species at Jamesbury, July 4, 1891. It 

 was submitted to Mr. Coquillett, who pronounced it new, but as the 

 antennae were wanting in the specimen he preferred not to describe it. 

 Last summer, on July 3 and 4, I captured three females at Riverton. As 

 they differed so much from the male, I was still unable to straighten out 

 the matter, so postponed further study until another season. On July 4, 

 at Riverton, while sweeping along a wood-road leading through a pine 

 grove, I caught a male like the Jamesbury specimen, and on the 6th suc- 

 ceeded in capturing at the same place two males and seven females. 



To my esteemed friend, Mr. D. W. Coquillett, I now take pleasure in 

 dedicating this interesting species. 



Psilocephala grandis, n. sp.— $ . Head black ; face and lower part 

 of the front with a white pubescence, on the front confined to the sides 



