acrididjE. 675 



42. Heteracris eejecta. 



Foem. Viridescens ; caput- longiuscuium, lineola arcuata dentata nigri- 

 canle,fastigio piano conico, fronte nigra varia ; antenncB rufcs; pro- 

 thorax subplaniis, sublricarinatits, sublilissime scaber ; prosterni 

 spina longi-conica, obliqua, mesoslernum fere attingens ; libice posticce 

 rufce ; alee antica abdomine paullo breviores. 



Female. Dull green, modeiately stout. Head smooth, elongate ; 

 vertex with two blackish angular lines, which proceed from the bind 

 border and are united in front; lip flat, conical; front varied with black; 

 keels slight; inner keels parallel ; outer keels diverging towards the face. 

 Eyes tawny, oval, much rounded on the hind side. Antennae dark red. 

 Prothorax very finely scabrous, widening slightly hindward; disk nearly 

 flat, with three very sliglit keels; transverse impressed lines distinct; fore 

 border and sides hardly rounded ; hind border much rounded. Prosterual 

 spine oblique, elongate-conical, moderately stout, nearly reaching the meso- 

 sternum. Hind femora as long as the abdomen ; hind tibiie red, much 

 shorter than the hind femora, their spines with black tips. Fore wings 

 a little shorter than the abdomen. Hind wings pellucid ; veins black, pale 

 at the base and along the interior border. Length of the body 16 lines; 

 expansion of the fore wings 24 lines. 



a. ? Presented by the Entomological Club. 



43. Heteracris vittipes. 



Mas. Viridis, sat gracilis; caput longiuscuium, nigricaute eonspersum, 

 fastigio longi-elliptico ; prothorax subtiliter punctalus, disco piano 

 subtricarinato ; prosterni spina pallide viridis, robusta, longi-conica, 

 obliqua ; femora postica abdoinine longiora, supra nigricantia, subltts 

 lutea ; tibia postica laiissime rufce, fascia basali nigra; alee anticce 

 cinerecb, basi fuscce, striga discoidali flava. 



Male. Green, rather slender. Head smooth, rather long, blackish- 

 speckled ; tip of the vertex elongate-elliptical ; four distinct keels, diverging 

 slightly towards the face. Eyes oval. Prothorax minutely punctured; 

 disk flat; middle keel very slight; lateral keels hardly marked; fore 

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

 sternal spine pale green, stout, elongate-conical, oblique. Pectus and 

 abdomen greenish brown ; hind borders of the abdominal segments very 

 pale green beneath. Hind femora longer than the abdomen, blackish 

 above, luteous beneath ; hind tibiic very bright red, with a black basal 

 band, shorter than the hind femora ; spines black. Four anterior legs 

 pale green, their femora brown above. Fore wings cinereous, much 

 shorter than the body, brown towards the base, with a yellow streak in the 

 disk; veins brown. Hind wings pellucid; veins black, very pale green 

 towards the base and along the interior border. Length of the body 

 12 lines; expaijsion of the fore wings 20 lines. 



