242 THOMAS SAY FOUNDATION 



a depressed area between the hind ocelli ; occiput quite 

 rugose ; hind ocelli only about two diameters distant from 

 the eyes ; antennae brown, composed of about fifty to fifty- 

 five segments. 



Prothorax brown to blackish ; wider than long ; some- 

 what widened behind ; angles rounded ; surface nearly 

 smooth; legs brown. Wings hyaline; subcosta approaches 

 costal before it bends down to radius before the cord ; no 

 costal crossveins except the one at the end of subcosta 

 (when Sc does not actually touch C) and rarely near the 

 tip of the wing ; radial sector forks a considerable distance 

 beyond the cord; about eight or nine cubital crossveins 

 in the forewing. 



Abdomen brown. Cerci of male composed of a single 

 globose segment, in female of six to eight segments. 



Male. Supra-anal process short, upturned, largely 

 membranous, at least twice as wide at base as near tip; 

 subanal lobes large, triangular, partly membranous and 

 on the posterior margin with a recurved tip; cerci com- 

 posed of a single, large, subglobose segment ; ninth abdom- 

 inal sternite produced into an evenly rounded subgenital 

 plate which does not bear a ventral appendage or lobe. 



Female. Genital opening near the middle of the eighth 

 abdominal sternite, not covered by a subgenital plate; 

 hind margin of ninth abdominal sternite produced and 

 evenly rounded. 



Distribution. — Holotype, male, allotype, female, and para- 

 types, four males, Feb. 24, 1903, Plummers Id., Md. (Cur- 

 rie, Warner and Barber, in U. S. National Museum) ; four 

 males, March 1, 1902, Washington, D. C. (H. S. Barber) ; 

 one male, March 11, 1902, Washington, D. C. (H. S. Bar- 

 ber) ; four males, March 12, 1902, Washington, D. C. (W. 

 V. Warner and H. S. Barber) ; one male, one female, March 

 2, 1902, Washington, D. C. (H. S. Barber) ; one male, 

 March 12, Orono, Me.; one male, March 12, 1894, Black 

 R. Falls, Wis. ; one male, April 8, Hennepin Co., Minn. ; 

 one male, one female, April 20, Taunton, Mass. ; one male, 

 Riverton, N. J. 



Taeniopteryx contorta new species. 



(Plate 45, figs. 5, G.) 



Length to tip of wings, male, 11 mm. Expanse, male, 

 18.5 mm. 



General color dark brown or blackish. Head a little 

 narrower than prothorax ; uniformly brown, not rugulose ; 

 lateral tubercles large and considerably raised ; a de- 



