358 THE CANADIAN ENTOMOLOGIST. 



fourth, the fourth and fifth subequal and twice as long as the sixth, 

 the sixth and seventh subequal, the eighth and ninth subequal and 

 slightly shorter than the seventh, the ninth with slightly tapering 

 sides and broadly rounded at apex ; the wings strongly infuscated, 

 hyaline beyond the apex of the stigma, the veins, including the 

 costa and the stigma, black ; the front wings with the free part of 

 R, one and one-half times as long as the free part of R 5 ; the free 

 part of Rj slightly bowed inwardly, and the radial cross-vein 

 straight; the greatest length of the cell R t one and one third times 

 the greatest length of the cell R : , ; the legs finely sericeous ; the 

 posterior metatarsus subequal in length to all the following seg- 

 ments together, the second segment one-third the length of the 

 metatarsus, the third segment almost as long as the second, the 

 fourth half as long as the third ; the saw-guides straight above and 

 on the basal half below, the apical half below convex and strongly, 

 convexly rounded to a blunt point at apex, the apex and the ventral 

 margin with a dense brush of hairs. Length, 6 mm. Habitat, 

 Poquonock, Connecticut. 11. L. Viereck, collector. Described by 

 Norton from Massachusetts specimens obsoleta, Nort. 



13. Lateral ridges of the pentagonal area not elevated at all on the 

 front below the lateral ocelli ; body black, with the legs below the 

 knees white, the apices of the posterior tibiae and tarsi more or less 

 infuscated ; the walls of the pentagonal area distinct, but broadly 

 rounded, broadly expanded at their ventral ends, parenthesis- 

 shaped, the curve being turned outward, forming a frontal crest not 

 strongly raised above the surfaces adjacent to it, deeply broken at 

 middle ; the area above the frontal crest flattened, concave, 

 extending behind the median ocellus, between and somewhat behind 

 the lateral ocelli ; the V-shaped furrow wanting ; the median fovea 

 limited to three diverging lines, one extending between the break 

 in the frontal crest and the others to the antennal fovea ; the hypo- 

 clypeal area elevated at middle into a ridge uniformly wide and 

 high, about a half longer than wide ; the puncture on each side of 

 the front large and situated above the dilated ends of the walls of 

 the pentagonal area ; the postocular area strongly convex, broader 

 than long ; the front between the eyes and the pentagonal area 

 deeply concave ; the vertical portion of the antennal furrow fairly 



