20 Studies in Kansas Insects. 



d'. Subgenital plate of male short and broad, its apical breadth equal to 



or surpassing the length of its lateral margin Hexanua. 



d-. Subgenital plate of malt distinctly narrower than long, often narrow- 



,, t gracilis. 



ing apically " 



V Tegmina nearlj or quite as long as, or longer than the abdomen; furcula generally 

 well developed, generally at least a quarter as long as the supra-anal plate, but 

 sometimes obsolete. 



b 1 . Cerci of male expanding from the base toward the middle,- as a whole broad 

 and short, flabellate, not expanded apically. 

 c'. Cerci of male twice as broad in broadest as in narrowest portion. 



,1' Subgenital plate of male with a distinct though minute independent 



apical tubercle occidental*. 



d-. Subgenital plate of male with no trace of an apical tubercle .. regalia. 



c=. Cerci of male with no striking inequality in breadth fiabellifer. 



b=. Cerci of male tapering from the very base toward the middle, rarely equal in 

 basal portion; generally long and slender and rarely as little as twice as long 

 as broad. 



c 1 . Cerci of male beyond the middle either equal or tapering, the tip usually 

 slender or accumulate, never bifurcate. 



d 1 . Furcula of male developed as large flattened lobes, about half as 



long as the supra-anal plate and exceptionally broad, but apically 



narrowed by the considerable excision of the inner side; subgenital 



plate not elevated apically above the lateral margins. 



e 1 . Forks of the male furcula more or less obliquely or transversely 



truncate at tip. and given an oppositely hooked appearance by 



the rounded excision of the inner margin ; hind femora generally 



distinctly banded. 



f 1 . Lateral lobes of prozona with a broad and usually distinct 

 piceous band above: tegmina generally distinctly flecked 



along the middle line bowditcKi. 



P. Lateral lobes of prozona with a narrow or no distinct band 

 above: tegmina very obscurely flecked, if at all, along the 



middle line flavidus. 



e 2 . Forks of the male furcula rounded symmetrically at the tip, the 

 inner margin scarcely more excised than the outer, so that the 

 forks are straight and not oppositely hooked; band of hind 



femora scarcely perceptible elongatus. 



d-. Furcula of male variously developed, rarely at all unusually broad 



and flattened, and then either not apically emarginate on the inner 



side or the subgenital plate is considerably elevated apically. or both. 



e 1 . Subgenital plate of male almost or quite as broad as the marginal 



length, its apical margin generally notched: cerci broad and 



nearly equally broad throughout (except sometimes narrowed by 



the oblique excision on the lower side of the apical half), the 



basal half scarcely tapering, the whole rarely more than twice and 



never thrice as long as the middle breadth (except in a few 



cases, and then the apical margin of the subgenital plate is 



mesially notched), very broadly rounded at the apex. 



£*. Apical margin of subgenital plate of male not mesially 



notched: mespsternum of male variable. 



g 1 . Apical margin of subgenital plate of male but slightly 

 elevated above the lateral margin and moderately pro- 

 longed posteriorly; mesosternum of male in front of 

 lobes flat glaucipes. 



* Reported from Labette countv, Kansas, bv Scudder. Proceedings of Natl. Museum, 

 Vol. 20. 



t Reported from Sedgwick countv. Kansas, by Iselv. Kansas Academy of Science, 

 V.. I XIX, 1903 and 1904. 



