ACRIDTD^.. 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 

 nenrly parallel. Eyes ferruginous, elliptical. Antennne pale testaceous, 

 slender, blackish at the tips. Protborax 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. Proslernal 

 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 vvings 17 — 24 lines. 



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



58. Caloptenus dominans. 



Foem. Fuscus, sal gracilis, snbliis fulvtts ; caput breviusrulum, fasligio 

 transversa an/ice roluudato, fronle aspere et dense punctata ; antenna: 

 fulvcE , apices versus picece ; prolhorax subscaber, subcarinatus ; pro- 

 sterni spina robusla, longa ; fernora fasciis duabus apiceque nigri- 

 cantibus, subtus rufa ; tibice postica ruf<e ; alee antica ferruginea, 

 apice cinerece, cnrpore paullo breviores ; ala posticee cinereo-diaphanw, 

 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 iu front; front roughly and thickly punctured: the four 

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

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

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

 thorax together. Prothorax finely scabrous, widening biudward, 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 ehmgated. Proslernal spine stout, long, 

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

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

 hind tibiae red, a liltle shorter than the hind (emora, their spines with black 

 tips. Fore wings (erruginous, 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 ferrcgineus. 



Mas. Ferrugineus, sat gracilis, subtus flavus ; caput inter oculos bicari- 

 nalum,fastigio depresso subtriangutari ; antenna picetE, basi testacete ; 

 prothorax subtiliter scaber,fere planus, carina dorsali tenuissima ; 



