Grasshoppers of Kansas. 21 



g 2 . Apical margin of subgenital plate of male conspicuously 

 elevated above the lateral margin and prolonged pos- 

 teriorly; mesosternum of male in front of lobes with a 



central swelling, forming a blunt tubercle scitus. 



i-. Apical margii of subgenital plate of male mesially notched; 

 mesosternum of male in front of lobes with a central swell- 

 ing a blunt tubercle. 



g 1 . Tegmina extending beyond hind femora, if at all, by 

 not more than the length of the pronotum ; prozona of 

 male quadrate or very feebly transverse: cerci of male 

 generally almost or quite twice as long as broad, .atlanis. 

 g-. Tegmina extending beyond hind femora by the length of 

 the pronotum or nearly as much, often by the length 

 of the head and pronotum combined; prozona of male 

 generally strongly transverse; cerci of male not more 



than half as long again as broad *spretus. 



e 2 . Subgenital plate of male entire, narrower than long, apically con- 

 * spicuously narrower than at base; cerci distinctly narrowing on 

 basal half, the upper angle of the apex prolonged and often sub- 

 acuminate. 

 f 1 . Pronotum marked above with light carinal streaks on dark 



background; tegmina dark olivaceous green plumbeus. 



f 2 . Pronotum uniform in coloring above; tegmina dark fuscous. 



femur- rubrum. 

 c 2 . Ceri of male more or less expanded apically, so as to be broader at some 

 point beyond the middle than at the middle, spatulate or subspatulate or 

 apically bifurcate. 



d 1 . Cerci of male spatulate or subspatulate, at most moderately broad, 

 apically entire and no broader than at base ;' furcula always developed 

 as distinct denticulations, generally as long or very long ones. 

 e 1 . Furcula of male long and prominent, the projecting portion much 

 longer than the last dorsal segment from which . it springs, gen- 

 erally more than a third as long as the supra-anal plate. 

 f 1 . Subgenital plate of male not very broad at apex, distinctly 

 narrower than long, not notched; furcula about half as long 



as supra-anal plate bispinosus. 



f 2 . Subgenital plate of male very broad apically, nearly or quite 

 as long as broad, apically generally notched, though feebly: 

 furcula rarely more than a third the length of subgenital 

 plate. 



g 1 . Hind tibia red coccineipes. 



g 2 . Hind tibia glaucous. 



h 1 . Furcula of male not more than a third as long as 

 t supra-anal plate; tegmina lightly or not at all macu- 

 late anffustipennis. 



h 2 . Furcula of male more than a third as long as 

 supra-anal plate; tegmina usually heavily maculate. 



impiger. 



e 2 . Furcula of male slight, the projecting portion not longer or 



scarcely longer than the last dorsal segment from which it springs. 



f 1 . Interval between mesosternal lobes of male nearly or' quite 



twice as long as broad. 



g'. Median carina of pronotum obsolete or almost obsolete 

 on the prozona, distinct but low on the metazona ; ex- 

 tremity of male cerci nearly plain exteriorly or merely 

 depressed within the margin ; fork of furcula conspicu- 

 ously divergent. 



Now apparently extinct. 



