Grasshoppers of Kansas. 19 



erally nearly the length of the pronotum, and usually more or less 

 acuminate apically; or they are fully developed and then usually about 

 attain or a little surpass the tips of the hind femora, tapering more or 

 less but very gradually and apically well rounded, at a distance from the 

 apex equal to the breadth of the tegmina distinctly narrower than the 

 metazona, the intercalaries and cross-viens of the discoidal area relatively 

 numerous at least in the apical fourth and usually throughout, the 

 venation in general sharp and clearly denned, the humeral vein straight 

 and only apically arcuate, nearly always terminating either on the apical 

 margin or only a short distance before it, running for some distance 

 almost exactly parallel to the costal margin or merging insensibly into it, 

 the area intercalata always, even in macropterous forms of dimorphic 

 species, extending somewhat, generally considerably, beyond the middle of 

 the tegmina. Hind femora moderately long and slender, the inferior 

 genicular lobe with at least a darker basal spot or transverse band, the 

 hind tibia with a variable number of spines (generally nine to fourteen) 

 in the outer series, by rare exception eight only. Abdomen more or less 

 compressed, the sides of the first segment with a distinct tympanum, the 

 extremity of the male more or less, sometimes strongly, clavate,* usually 

 considerably recurved, the subgenital plate of variable form, but always 

 with the lateral margins ampliate at the base and with no distinct apical 

 tubercle, though not infrequently apically produced or subtuberculate and 

 frequently tumescent; cerci exceedingly variable in form, often enlarging 

 apically, always lamellate excepting (the lakinus series) where they are 

 basally globose, never styliform, rarely in the least substyliform, gen- 

 erally incurved and of about the length of the supra-anal plate; furcula 

 usually developed and to a very variable extent, and with variable form; 

 pullium rarely exserted; ovipositor of female generally fully exserted. — 

 1. c scudder. 



Key to the Melanopli. 



A 1 . Tegmina conspicuously shorter than the abdomen, often no longer than pronotum; 

 furcula generally feebly developed, generally no longer than the last dorsal segment 

 from which it arises. 



b 1 . Cerci of male expanding from the base outward and bullate, abruptly tapering 

 and bent inward at the tip; subgenital plate of male abruptly elevated apically. 

 c 1 . Interval between mesosternal lobes of male distinctly twice as long as 



broad; of female fully as broad as long marculentu.8. 



c~. Interval between mesosternal lobes of male distinctly less than twice as 



long as broad; of female barely broader or not broader than long, .lakinus. 



b 2 . Cerci of male tapering in the basal half, usually from the very base, sometimes 



throughout, usually laminate: subgenital plate of male of variable elevation 



apically. 



c'. Cerci of male beyond the middle either equal or tapering, sometimes simply 

 styliform throughout, the tip usually more or less pointed, metastern'al 

 lobes of male attingent or subattingent. 

 d 1 . Cerci of male very broad and short, not more than twice as lung as 



the middle breadth, and broadly rounded at apex discolor. 



d' 2 . Cerci of male more elongate, at least twice, generally much more than 

 twice, as long as middle breadth, ordinarily more or less acuminate 



at a P ex scudderi. 



c-. Cerci 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. 



