ACRIDTD.fl. 575 



three very slight keels and with the usual four transverse impressed lines ; 

 fore border and sides slightly rounded ; hind border more rounded. Pro- 

 sternal spine thick, oblique, obtuse, very broad, not extending to the meso- 

 sternuni. Hind femora as long as the abdomen, longer than the hind 

 tibiae, with two black bands and on the outer side with some black marks 

 nearer the base. Hind tibiae wilh two black antemedial bands, reddish on 

 the inner side towards the tips; spines with black tips. Fore wings pale 

 cinereous, rather shorter than the body, with many spots and dots which are 

 formed by black veins; veins elsewhere pale. Hind wings pellucid; veins 

 mostly black. Length of the body 18 lines; expansion of the fore wings 

 32 lines. 



The unusual breadth of the prosternal spine is the chief characteristic 

 of this species. The structure of the head exhibits a transition between 

 Cyrtacanlhacris and Heleracris. 



a. Upper Egypt. From Mr. Lamb's collection. 



50. CVRTACANTHACRIS ORNATIPES. 



Mas. Testacea ; caput. strigis duabus lateralibus nigris, verlice. antico 

 nigricante piano fere elliptic? ; prothoracis discus piceus, plnnua, sub- 

 tricarinatus ; prosterni spina pa Hide flu va, crassa, mesnslernum non 

 atlingens ; tibicc posticce saturate virides^Jlavo bifasciatce, apices versus 

 rufce, spinis albis apice nigris ; alee anticce pallide cinerc&, striyis 

 longitudinnlibusfasciiaque exterioribus indeterminatis obscurioribus 

 niyro-venosii ; aite poslica diaphante, venis nigris basi pallide flavis 

 aut viridibus. 



Male. Testaceous. Head smooth; fore part of the vertex flat, blackish, 

 nearly elliptical; a black line along each inner side of the sockets of the 

 antennae; front thinly punctured, hardly keeled ; a black streak from each 

 eye to the face. Eyes piceous, elliptical. Prolhorax finely scabrous, with 

 three very slight keels and with the usual four transverse impressed lines ; 

 disk piceous, flat; fore border and sides slightly rounded; hind border 

 more rounded. Prosternal spine pale yellow, thick, obtuse, oblique, not 

 extending to themesosternum. Hind femora longer than the abdomen and 

 than the hind tibia?. Hind tibiae deep green, bright red towards the tips ; 

 two yellow bands near the base; spines white, with black tips. Hind tarsi 

 red. Fore wings pale cinereous, as long as the body, with some longitudinal 

 cinereous black -veined streaks and several exterior interrupted bands of the 

 same hue; veins elsewhere whitish or testaceous. Hind wings pellucid; 

 veins black, pale green or yellow at the base and towards the interior 

 border. Length of the body 18 lines; expansion of the fore wings 

 36 lines. 



51. CYRTACANTHACRIS PICTIPES. 



Foem. Viridis aut testaceus; caput el prothorax nigro late univittata ; 

 caput subcarinatum, antice planum vix hcxagonale ; antenna: picea, 

 basi fulva; prothoracis discus planus, vix carinatus ; prosterni 

 spina albida, cra.wn, subarcuata, mesosternum fere attinyens ; femora 



