202 PROCEEDINGS OF THE AMERICAN ACADEMY. 



a distance from the apex equal to the breadth of 

 the tegmina distinctly narrower than the metazona, 

 the intercalaries and cross-veins of the discoidal 

 area relatively numerous, at least in the apical 

 fourth and usually throughout, the venation in 

 general sharp and clearly defined, the area inter- 

 calata distinctly defined by the adjustment of the 

 veins at its distal extremity, the humeral vein 

 straight and apically arcuate, nearly always ter- 

 minating either on the apical margin or but a 

 short distance before it, running for some distance 

 almost exactly parallel to the costal margin or 

 merging insensibly into it ; cerci of male very 

 variable, very rarely {Mel. flabellatm Scudd., Mel. 

 puer Scudd.) styliform, and then the subgenital 

 plate is either exceptionally broad or only moder- 

 ately narrow, and the apical margin elevated. 



Melanoplus. 

 j^. Head large in proportion to pronotum, nearly 

 half as long again as the long prozona ; pronotum 

 faintly subsellate, feebly flaring in front to receive 

 the head ; tegmina, when fully developed, broad 

 and subequal, hardly tapering in the distal half, 

 at a distance from the apex equal to the breadth 

 of the tegmina as broad as the metazona, the in- 

 tercalaries and cross-veins of the discoidal area 

 everywhere ^ew, the venation in general loose 

 and ill defined, the area intercalata not distinctly 

 marked by the adjustment of the veins at its distal 

 extremity, the humeral vein broadly sinuous, ter- 

 minating on the costal margin at least as far be- 

 fore the apex as the breadth of the tegmina, 

 nowhere running closely parallel to that margin 

 nor merging into it ; cerci of male styliform, the 

 subgenital plate very narrow, the margin not api- 

 cally elevated Phcetaliotes. 



i^. Dorsum of pronotum twice as long as average 

 breadth, at least in the male, with no median con- 

 striction; antennjE, at least in the male, generally 

 longer than the hind femora and much more than 



