3IO ACRIDIIDAE 



Foveoles superior, open behind. Prosternum irregularly 

 swollen, rarely mucronate. Tribe 8. Pamphagides. 

 (Fig. 184, Xiphocera asina.) 



Foveoles lateral or inferior, closed behind or (usually) 

 entirely obsolete. Prosternum distinctly mucronate or 

 tuberculate. Tribe 9. Acridiides. (Fig. 84, Acridium 

 peregrinum ; Fig. 176, Galopitenv.s spretus.) 



