607 



Tip of vertex quadrilateral. - 14. APALACRIS. 



Tip of vertex not quadrilateral. - 15. ABRACRIS. 



U5I Prosterual spine thick, slightly oblique and compressed. 



16. EUPRKPACRIS. 



-W- Hind tibiae dilated in the middle. - - - 17. QUILTA. 

 --*- Fore border of the prothorax notched. - 18. CHROMACRIS. 



oo Prothorax cylindrical. 



-j- Fore border of the prothorax notched. - - 19. AGRIACRIS. 



- -* Fore*border of the proihorax not notched. 

 -+ Prosiernal spine conical. 



*-* Eyes remote. ___... 20. OXYA. 



-M- Eyes approximate. - - - - -22. SYNTOMACRIS. 



*> Eyes rather prominent. 



Eyes not prominent. ----- 23, STENACRIS. 



H--J- Prosternal spine transverse, slightly forked. 



-n- Head longr. - 24. GLAPHYRACRIS. 



M--M- Head short. - 25. CHARIACRIS. 



H J - Prosternal spine acute, rather short, slightly compressed, 

 X X Wings short or rudimentary. 



o Prosternal spine not transverse. 

 H- Prothorax cylindrical in the fore part, dilated hindward. 



26. PKOPOEDETES. 



-+-+ Prothorax dilated hindward. 27. PEDIES. 



oo Prosternal spine transverse, very broad. - - 28. TINARIA. 

 ooo Prosternal spine very slender. - 29. OXYPHYMA. 



Prothorax compressed. - - 30. CUCULLIGERA. 



ft Prothorax generally with three keels. 

 Hind femora long. 



Head not keeled. - - - *- - 31. HETERACBIS. 

 Head keeled. ------ 32. LEPTACRIS. 



J{: Hind femora short, thick. 

 Vertex excavated. 

 X Prothorax with a distinct keel, 

 o Prosternal spine conical. 



-* Disk of the prothorax with a keel on each side. 33. CALOPTENUS. 

 -i h Disk of the proihorax rounded on each side. 34. OMMATOLAMPIS. 

 oo Prosternal spine bituberculate. - - 35. PLATACANTHUS. 

 X X Keel of the prothorax more or less indeterminate. 



36. PLATYPHYMA. 



Vertex not excavated. - 37. PODISMA. 



b. Eyes globose, very prominent. 

 * Body cylindrical. ----- 21. OPIPTACRIS. 



** Body not cylindrical. 



f Wings complete. - 38. OMMEXECHA. 



ft No wings. - - - - - - 39. BATBACHOPUS. 



Genus TRYBLIOPHOHUS, C. D. S. 546. 



This genns is much more nearly allied to Oxya than to Teratodes, 

 which it precedes in Serville's arrangement. 



