ACRIDIDJE. 565 



tawny tinge along the exterior part of thecosta ; veins black, tawny towards 

 the base. Length of the body 28 lines; expansion of the fore wings 

 72 lines. 



The oblique prosternal spine distinguishes this species from Acridium, 

 but it is not curved like that of the typical species of this genus. 



. Ceylon. From Dr. Gardner's collection. 



31. CYRTACANTHACRIS SUBLITURATA. 



Foam. Testacca ; vertex antlce hexagonalis ; prosterni spina crassa, 

 arcuata, mesoslerni maryinem superans ; alee anlicce diaphance, basi 

 testacete, maculis costulibus, maculis quinque discoidalibus fasciisque 

 tribus exterioribus obliquis indelerminatis cinereis fusco marginatis ; 

 alee poslicce diaphante, venis nigris basi pallide flavis. 



Female. Testaceous. Head smooth; fore part of the vertex 

 hexagonal ; front very thinly punctured, with four distinct keels, the inner 

 pair slightly diverging towards the face, the outer pair more diverging. 

 Eyes elongate-elliptical. Antennae darker towards the tips. Prothorax 

 finely scabrous, broadest in the hind part, with the usual four transverse 

 impressed Hues and with a slight dorsal ridge ; fore border slightly rounded; 

 sides slightly undulating ; hind border much rounded. Prosternal spine 

 thick, curved, extending beyond the fore border of the mesosternum. Hind 

 femora longer than the abdomen. Hind tibiae rather shorter than the hind 

 femora; spines with black tips, largest on the inner side. Fore wings 

 pellucid, testaceous towards the base ; marking cinereous, the veins clouded 

 with brown on the borders of the markings; a row of costal spots; five 

 discoidal spots and three exterior oblique abbreviated bands, of which the 

 second and the third consist of patches. Hind wings pellucid; veins black, 

 pale yellow towards the base and along the interior border. Length of the 

 body 25 lines ; expansion of the fore wings 60 lines. 



o. Ceylon. Presented by Dr. Davy. 



32. CYBTACANTHACRIS INFICITA. 



Fcem. Albido-testacea ; vertex antiee hexagonalis ; antenna fulva ; pro- 

 sterni spina crassa, subarcuala^ mesosternum attingcns ; femora postica 

 nigro unilineata ; alee anticse pallide cinerece, nigro plagiata ; alee 

 posticcB diaphance, venis nigris basi pallidis. 



Female. Whitish testaceous. Fore part of the vertex depressed, 

 hexagonal ; front roughly punctured, the punctures brownish ; keels 

 strongly marked, the inner pair most approximate in the middle, the outer 

 pair diverging towards the face. Eyes livid, elongate-elliptical. Antennae 

 tawny. Prothorax scabrous, with the usual four transverse impressed lines 

 and with a very slight dorsal ridge; fore border rounded; sides nearly 

 straight; hind border much rounded. Prosternal spine thick, slightly 

 curved, extending to the fore border of the mesosternum. Hind femora as 

 long as the abdomen, with a black line on the outer side. Hind tibiae as 

 long as the hind femora; spines with black tips. Fore wings pale cine- 

 reous, longer than the body, with black discoidal patches along the whole 



