ACRIDIDjE. 701 



Male. Ferruginous, slender, testaceous beneath. Head testaceous, 

 smooth, rather long, with a black line proceeding from each eye to the hind 

 border, and with a blackish streak proceeding from each eye to the mouth ; 

 tip of the vertex depressed, fusiform ; front very thinly punctured ; four 

 keels slight, slightly diverging towards the face. Eyes tawny, elongate- 

 elliptical. Antennae pale testaceous above, piceous towards the tips. Pro- 

 thorax very finely scabrous : disk nearly flat, with three well-defined keels ; 

 two whitish and two blackish oblique streaks on each side ; fore border 

 hardly rounded ; sides rounded; hind border hardly angular. Prosternal 

 spine whitish, transverse, twice broader than thick, rounded at the tip. 

 Abdomen testaceous. Hind femora a little longer than the abdomen, with 

 a broad irregular black stripe on the inner side, with whitish angular 

 streaks and with a green tinge on the outer side ; hind tibiae green, shorter 

 than the hind femora; spines whitish, with black tips. Fore wings pale 

 cinereous, rather shorter than the body, with a brown discoidal stripe, and 

 with some exterior brown dots ; a whitish basal streak and some brown dots 

 between the costa and the stripe, which includes four white dots. Hind 

 wings pellucid; veins mostly whitish. Length of the body 10 lines; ex- 

 pansion of the fore wings 18 lines. 



a. Madagascar. From Madame Ida Pfeiffer's collection. 



S. Asia. 



A. Hind wings red. 



a. Head white on each side. 



* Fore wings with dark spots. - - insignis. 

 ** Fore wings with pale spots. 



f Hind femora with a black stripe on the inside. glaucopsis. 



f-f- Hind femora with no black stripe. - liturifer. 



b. Sides of the head not white. - erubescens. 



B. Hind wings not red. 



* Hind border of the prothorax much elongated. - - scutifer. 

 ** Hind border of the prothorax slightly elongated. - Sinensis. 



*** Hind border of the prothorax not elongated. 



t Prothorax with two stripes. - - dorainans. 



ft Prothorax not striped. 



Hind tibiae red. - ferrugineus. 



$ Hind tibia? pale yellow. ----- signatipes. 



52. CALOPTENUS INSIGNIS. 



Fo3in. Fulvus, robustus ; caput breve, poslice albidum, fastigio conico 

 depresso, plagis duabus frontalibus albidis; antennce testa cea ; pro- 

 thorax scaber, tricarinatus ; prosterni spina robusta, longi-conica ; 

 abdomen rufo-luteum ; pedes testacei ; femoribus posticis latissimis 

 abdomine paullo longioribus extus albidis nigro punctatis, tibiix 

 posticis luteis ; alee antic ce. diaphance, corpore paullo breviores, plagis 

 maculis guttisque plurimis cinereis fusco venosis ; ala poslicce basi 

 rosece, spatio costali albo venoso. 



Female. Tawny, stout. Head smooth, short, whitish on each side of 

 the hind part; vertex with a short slight keel near its tip, which is 



