36 



b. Face vertical : 



* Antennfe rarely ensiforni ; their joints distinct; ver- 

 tex flat, triangular ; front advanced between the 



antenn£E in a blunt cone Conophori. 



** Antenu£E filiform or setaceous ; articles indistinct ; 

 front convex. Acridites. 



=. Prosternuni spined Mucronati. 



= =. Prosternuni unarmed Mutici. 



II. Pulvilli absent; mouth covered; pronotum extending over the ab- 

 domen Tetricidites. 



Burmeister's arrangement cannot be shown without inserting his entire 



Hst of genera ; but as it is that upon which Mr. Scudder's is based, I give the 



entire synoptical table : 



I. Hind legs saltatorial ; femora enlarged at the base : 



A. Anterior margin of the presternum not elevated, truncate : 



a. Antenn;e G-7-jointed ; each sex apterous Proscopia. 



h. Antennae more than 8-jointed : 



1. Antennaj distinctly acuminate: 



a. Joints of the antenn® triquetrous Truxalis. 



aa. Joiutsoftheantennreflat; marginsacute; presternum armed: 



b. Pronotum cylindrical ; median carina slightly elevated Copiocera. 



bb. Pronotum cristate : 



c. Each margin acute; each sex winged ; antennfe ensiform Xrphocera. 



cc. Each margin rounded ; male, winged ; female, apterous or 



sub-apterous ; antenna} moniliform at the apex Pampliagus. 



bbb. Pronotum flat ; median carina elevated Ehomalea. 



aaa. Joints of the antennae terete, globose, or claviform Pwcilocera. 



2. Antennae not acuminate toward the apex; either filiform or clavate. 



'a. Prosternum spined; mandibles and maxillae acutely dentate: 



b. Median carina of the pronotum much elevated ; the lateral 



margins rounded : 



c. Median carina cristate behind Monachidnim. 



cc. JNIedian carina cristate in front or equally elevated Acridium. 



bb. Median carina scarcely elevated : 



c. Margins of the pronotum acute : 



d. Face oblique Oxi/a. 



dd. Face vertical : Caloptenus. 



cc. Margins of the pronotum rounded ; no median carina Ommatolampis 



aa. Prosternum not spined ; mandibles not dentate ; maxillae 

 obtusely dentate ; 



b. Head obtuse, perpendicular (Edijmda. 



bb. Head sub-acute ; face deflexed Oompliocerus. 



AA. Anterior margin of the prosternum elevated ; mouth covered : 



a. Each sex winged : 



b. Pulvilli between the claws of the tarsi , Ommcxeclia. 



bb. Pulvilli absent Tetrix. 



aa. Each sex apterous Batrachotetrix 



TI. Posterior legs scarcely saltatorial ; femora not enlarged at the base . . Pncumora. 



