lo Lazufrcnce Bruner 



d. Anterior femora above unarmed on both sides, equally 



toothed, or at least not triquetrous Phibalosomidae. 



e. Anterior femora straight at the base or above not com- 

 pressed, or above on both sides subequally spinose. 



Prosternum usualty broad Eurycanthinae. 



ee. Anterior femora always curved at their base, above more 

 or less compressed, unarmed. 

 /. Operculum of the female not surpassing the apex of 

 the abdomen or the prosternum broad, transverse 

 [Old World genera]. 

 g. Vertex not foHaceous two horned [genera Aus- 

 tralia-Asiatic]. 

 h. Prosternum transverse. Cheeks, viewed from 

 the side much wider than the eyes. Meso- 

 notum of female with the sides subparallel. 



Platycraninae. 

 hh. Prosternum narrow. Cheeks not wider than the 

 eyes. Mesonotum of female dilated poste- 

 riorly Diurinae. 



gg. Vertex foliaceous two horned. Prosternum narrow 



[African genera] Palophinae. 



//. Operculum of the female much surpassing the apex of 

 the abdomen or the metatarsi sulcate above. Pro- 

 sternum sulcate [American genera]. 



Philbalosomatinae. 

 dd. Anterior femora triangular, inside above sometimes or in- 

 side strongly spinosodentate. Cerci often large, foliaceous 



[Old World genera] Acrophyllinae. 



cc. Antennae much longer than the anterior legs, slender, indis- 

 tinctly jointed [Old World genera] Necroscidae. 



Families of Locustoidea (acridoidea) 



A. Feet not provided with an arolium or cushion between the claws. 

 (Pronotum entirely covering the body. Tegmina when present 



always lobiform.) Tetrigidae. 



AA. Feet with the arolium invariably present between the claws. (Pro- 

 notum variable but never entirely covering the body. Tegmina 

 when present of various forms.) 

 b. Antennae of both sexes usually shorter than the anterior femora. 

 c. Head short, compressed from in front. 



d. Body deeply inflated. (Pronotum covering at least half of 



the abdomen. ) Pneumoridae. 



dd. Body normal Eumastacidae. 



204 



