126 THE CANADIAN ENTOMOLOGIST. 



bent beyond the middle in the male. Wings deep brown along the anterior 

 half, broadly infuscated along the posterior border, leaving a space hyaline 

 in the anal cell and the base of the fifth posterior cell. 



This is a handsome large species, rather larger than iiiucens, which it 

 resembles in shape, the abdomen being more convex. Two specimens, 

 Arizona, from Professor Comstock (No. 46). 



Eupar/iyphns, n. sp. ? 



$ . Length 6 mm. The head and thorax of this species agree 

 throughout with Loew's description of E. stigmaticaiis, except that the 

 scutellum is yellow, with the base narrowly black. The abdomen shows 

 a distinct difference in that the first segment has a small lateral spot, and 

 the second, third and fourth segments with a large green triangle on the 

 posterior angles, extending to the front margin of the segment and touch- 

 ing each other behind on the fourth segment ; the inner margins of these 

 green spots are yellowish. The fifth segment is wholly greenish and 

 yellowish to the naked eye. The abdomen shows a broad greenish 

 yellow margin. The legs are wholly yellow, except the last three joints 

 of the tarsi, which are black. The wings agree also, except that the veins 

 and stigma are less dark. 



One specimen, Washington Territory. 



Euparhyphus ornatus, n. sp. 



Ij^ . Length 6 mm. Front and face yellow, with black markings, as 

 follows : A spot on each side in front of the ocelli ; a slender stripe from 

 near the ocelli to the oral margin, interrupted at the antennae ; a broader 

 stripe (broader above) beginning a little lower on each side and reaching 

 to the oral margin. First two joints of the antennas yellow, the third 

 wanting. Occiput black. The lateral orbits yellow. The lateral margins of 

 the face, and the posterior orbits below, white pollinose. Thorax black. 

 Two very slender dorsal vittulse, broadly separated, the humeri and a 

 slender line reaching to the base of the wings, the postalar callosities, the 

 margin of the scutellum and spines, a spot in front of the wings on the 

 pleurae, contiguous with the line above it, and a smaller spot below, 

 yellow. Abdomen black ; the third segment on each side, with a rather 

 large semi-elliptical spot, the slender lateral margin of the remaining 

 segments, and the broader hind margin of the last segment, yellow. Legs 

 yellow ; the hind femora and tibiae in their middle infuscated ; the last 



