ACRIDID^. 705 



Male. Tawny, slender. Head short, smooth ; tip of the vertex flat, 

 punctured, subpentagonal, broadest in front ; front thickly punctured, with 

 four distinct keels; inner keels converging towards the face; outer keels 

 nearly parallel. Eyes ferruginous, elliptical. Antennae pale testaceous, 

 slender, blackish at the tips. Prothorax finely scabrous, widening hind- 

 ward, with a distinct middle keel, and with no lateral keels; fore border 

 nearly straight; sides rounded; hind border elongated, angular. Prosternal 

 spine short, thick, conical, slightly transverse. Hind femora whitish, longer 

 than the abdomen, with red on the inner side, with a row of black points 

 and with reddish oblique streaks on the outer side; hind tibiae red, shorter 

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

 shorter than the body ; veins pale ; some indistinct spots formed by tawny- 

 bordered veins. Hind wings pellucid, brownish at the tips; veins black, 

 greenish white at the base and along the interior border. Length of the 

 body 8 11 lines; expansion of the fore wings 17 24 lines. 



a. China. Presented by G. T. Lay, Esq. 



58. CALOPTENUS DOMINANS. 



Fo3m. Fuscus, sat gracilis, subtus fulvus ; caput breviusculum, fastigio 

 transverso antice rotundato,fronte aspere et dense punctata ; antennae 

 fulvce, apices versus picece ; prothorax subscaber, subcarinatus ; pro- 

 sterni spina robusta, longa ; femora fasciis duabus apiceque nigri- 

 cantibus, subtus rttfa ; tibia posticce rufce; alee anticce ferruginece, 

 apice cinerece, corpore paullo breviores ; alee posticce cinereo-diaphance, 

 apice fuscescentes. 



Female. Brown, rather slender, tawny beneath. Head rather short ; 

 vertex thinly punctured, with two slight keels between the eyes ; tip trans- 

 verse, rounded in front; front roughly and thickly punctured; the four 

 keels well defined, diverging towards the face. Eyes ferruginous, sub- 

 elliptical, straight on the fore side, rounded on the hind side. Antennae 

 tawny, piceous towards the tips, a little longer than the head and the pro- 

 thorax together. Prothorax finely scabrous, widening hindward, slightly 

 slanting on each side of the middle keel, which is very slight ; transverse 

 impressed lines slight; fore border nearly straight; sides slightly rounded ; 

 hind border rounded, slightly elongated. Prosternal spine stout, long, 

 rounded at the tip. Legs tawny; hind femora thick, as long as the 

 abdomen, with two blackish bands and with blackish tips, red beneath; 

 hind tibiae red, a little shorter than the hind femora, their spines with black 

 tips. Fore wings ferruginous, cinereous towards the tips, a little shorter 

 than the body. Hind wings cinereous, pellucid, brownish at the tips; 

 veins black, pale yellowish at the base and along the interior border. 

 Length of the body 15 lines; expansion of the fore wings 30 lines. 



a. Silhet. From Mr. Argent's collection. 



59. CALOPTENUS FERRUGINEUS. 



Mas. Ferrugineus, sat gracilis, subtus flams ; caput inter oculot bicari- 

 natuvn,fasligio depresso subtriangulari ; antenna picece, basi testacece ; 

 prothorax subliliter scaber,fere planus, carina dorsdli tenuissima ; 



