TBE CANADIAN ENTOMOLOGIST. 295 



the radial cross-vein much nearer the point of separation of Rg than the 

 radio-medial cross-vein; the saw-guides strongly convex above on the basal 

 half and straight or slightly convex below ; the body rufous with a spot 

 about the ocelli, a spot near the base of each wing, and the base of the 

 abdomen more or less black. Length 8 mm. 



Habitat.— Ithaca, N. Y. J. O. Martin, collector. 



Similar in appearance to i7ifuscata Norton, but readily separated by 

 the sculpture of the head. 



Mavroxyela distincta^ n. sp. — Female : head with a flat depressed 

 area in front of the median ocellus, never crossed by the median fovea ; 

 median fovea a distinct, narrow, elongate, diamond-shaped depression, 

 flat on the bottom; antennae with the third segment many times longer 

 than all the following segments together ; the fourth, fifth and sixth seg- 

 ments subequal in length, the following segments shorter ; the head below 

 the ocelli roughened by elongate punctures; the radial cross-vein nearer the 

 point of separation of Rg than the radio-medial cross-vein ; the saw-guides 

 convex above on the basal half and straight below ; the body rufous with 

 two spots on the lateral lobes of the mesonotum, and the postscutellum 

 black. Length 8 mm. 



Habitat.— Ithaca, N. Y. J. O. Martin, collector. 



The male is black with the clypeus, labrum, legs and venter, except 

 at base, apex, and lateral margin of abdomen for the most part, yellowish- 

 rufous. 



Separated trom infuscata Norton and distincta Mack by the form of 

 the median fovea. 



Protoxyela^ n. gen. — Front wings with the free part of M arising dis- 

 tinctly before the point of separation of R and Scg, the free part of R5 

 distinctly shorter than R + Sc^, frequently less than one-half the length of 

 this vein ; the free part of Sc2 almost twice as long as the free part of Sci ; 

 Scj much more oblique than Scg ; the cell Rg usually divided by a super- 

 numerary cross-vein ; the hind wing^s with free part of R5 present ; the 

 clypeus not triangular in outline, the median portion but little if any longer 

 than the lateral portions ; the antennae with the third segment as long as 

 all the following segments together ; the claws with an erect tooth at 

 middle. Type, Xyela cenia Nort. 



Itycorsia angulata, n. sp.^ Female : body olivaceous with the basal 

 segments of the antennae, the clypeal suture, the furrows of the head, the 

 postocellar area in great part, two irregular spots on the posterior orbits, 



