ACRIDIDjE. 503 



Male. Grass-green. Head testaceous, smooth, with two oblique 

 brown streaks which proceed from the hind border and are united in front; 

 fore part depressed, subhexagonal ; front with four green keels, the inner 

 pair parallel, the outer pair diverging. Eyes elliptical, rather prominent. 

 Antennas luteous. Prolhorax scabrous, slightly pilose, with a dorsal ridge 

 and with the usual four transverse impressed lines ; a band on the fore 

 border, another on the hind border and two stripes black, irregular ; fore 

 border curved in the middle ; sides almost straight ; hinder border elon- 

 gated and slightly angular. Prosternal spine thick, convex in front, 

 extending to the fore border of the mesosternum. Hind femora as long as 

 the abdomen. Hind tibiae bright red, shorter than the hind femora ; spines 

 white, with black tips, longest on the inner side. Fore wings cinereous, 

 longer than the abdomen ; veins brown, green towards the base, purplish 

 red along the costa. Hind wings pale cinereous ; veins brown, pale yellow 

 towards the base. Var. /3. Prothorax green, with two purple stripes ; fore 

 border also purple. Length of the body 17 19 lines ; expansion of the 

 fore wings 34 37 lines. 



a c. Natal. From M. GueinziuV collection. 



28. CYRTACANTHACRIS AURICOENIS. 



Mas. Testacea ; caput fuscescente bistrigatum, anlice niyricans ; antennce 

 lutecE^ apice obscuriores ; prothorax fasciis duabus interruptis vitfis- 

 que duabus nigris ; prosterni spina fusca ; tibia posticte nifte, nigro 

 spinosce ; alec antica cinerea,venis fuscis apud costam purpureo-rufis ; 

 alee postiece pallide cinerea, venis fuscis basi fulvis. 



Male. Testaceous. Head smooth ; vertex with two pale brown 

 streaks which converge from the hind border; fore part depressed, furrowed, 

 subhexagonal, blackish in front; front thinly punctured, with four keels, of 

 which the inner pair are parallel and the outer pair diverge towards the 

 face. Eyes ferruginous, elliptical. Antennae bright luteous, darker towards 

 the base. Prothorax scabrous, with a dorsal ridge and with the usual four 

 transverse impressed lines; an interrupted band on the fore border, another 

 on the hind border and two stripes black, irregular ; fore border rounded ; 

 sides slightly rounded ; hind border elongated, not angular. Prosternal 

 spine brown, thick, extending to the fore border of the mesosternum. Hind 

 femora shorter than the abdomen. Hind tibia3 red, a little shorter than 

 the hind femora ; spines black, longest on the inner side. P'ore wings 

 cinereous, a little longer than the abdomen ; veins brown, purplish red 

 along the costa. Hind wings pale cinereous ; veins brown, tawny towards 

 the base. Length of the body 24 28 lines ; expansion of the fore wings 

 36 -50 lines. 



The abdomen and the hind tibia3 are longer than those of C. prasina. 

 a, b. Natal. From M. Gueinzius' collection. 



Var.? Viridis ; antenna albido-flavce ; prothorax villis duabus purpureis 

 antice el poslice dilatafis ; tibiae posliece spinis atbis apice nigris; 

 alee anticte fulvo venosa ; alee postiece diaphance, vcnis niyris basi 

 pallide testaceis. 



