ACRIDID.F.. 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, obliijue, obtuse, very broad, not extending to the meso- 

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

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

 nearer the base. Hind tibiae with 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 

 Cyrlacanthacris and Heleracris. 



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



50. CVRTACANTHACRIS ORNATIPES. 



Mas. Testacea ; caput slrii/is duabus lateralibus nigris, verlice antico 



nigricanle flano fere fUipiico ; prothoracis discus piceui, planus, sub- 



Iricarinatus ; proslerni spina pnUide fluia, cras^a, mesi)stcr)ntm noii 



allingens ; tibicc poslicce saturate virides,Jlavo bifasriatce, apices versus 



rufie, spinis albis apice nigris ; alee unliccc pallide cinercic, strigis 



longiludinidibns fasciisque exlerinribus indeterininatis obscurioribus 



nigrO'Venosis ; alee posliccc diaphance, venis nigris basi pullide flavis 



aul 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 sireak from each 



eye to the face. Eyes piceous, elliptical. Prothorax 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 I)order 



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



extending to ihemesosternum. Hind femora longer than the abdomen and 



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



two yellow bands near the base; spines while, 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 oFthe 



same hue; veins elsewhere whitish or les'.aceous. 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. CVRTACANTUACRIS PICTIPES. 



Foem. Viridis ant tcstaceus; caput et prothorax nigro late univitlata ; 

 caput subcarinatum, anlice planum vix hnxagonale ; antenna: pice(P, 

 basi fulvcB; prothoracis discus planus, vix carinalus ; proslerni 

 spina albida, crassa, snbarcuala, mesosternum fere altinyens ; femora 



