ACRiDiD.iJ;. 565 



tawny linge along the exterior part of ilic costa ; 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 (rom Aoidium, 

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



a. Ceylon. From Dr. Gardner's collection. 



31. Cyrtacanthacris subliturata. 



Foem. Testacca ; vertex antice hexagonalis ; prosterni spina crassa, 

 arcnata, mesoslerni mart/mem superans ; alcF anlica; diaphana, basi 

 iestacece, maculis costalibus, maculis quhique discoidalibus fasciisque 

 trihiis exterioribus obliquia indelerminalis cinereis fusco maryinalis ; 

 alee po.iticte diaphancB, 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. Antennas darker towards the tips. Prothorax 

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

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

 sides slightly undulating ; bin 1 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. 



a. Ceylon. Presented by Dr. Davy. 



32. Cybtacanthacris inficita. 



Foem. Albido-teslacea ; vertex antice liexagonalis ; antenncp fulvce ; pro- 

 sterni spina crassa, subarcuata, mesosternum atlingcns ; femora poslica 

 nigra unilineata ; ala anticre pallide cinerece, nigra plagiatcB ; alcB 

 poslica diaphance, venis nigris basi paliidis. 



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 ou 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 



