66 



CATALOGUE 01-' ORTHOFTEROUS INSECTS. 



berculo magno conieo prope marginem postieum instructo ; 

 abdomiue angusto, subcylindrico ; pedibus brevibus, crassis ; 

 femoribus 4 posticis subtus dentatis (mas). 



Long. corp. uric. 2J ; anten. lin. 12 ; proth. lin. 2; me- 

 soth. liu. 5£; metath. lin. 5-^; abdom. lin. 9 + lin. 2-1- = 

 lin. i)i 



Bab. Ceylon. B.M. 



Dark olive-green, slightly glossy, with the two large co- 

 nical tubercles on the thorax glossy black ; the thighs ob- 

 scure luteous, with the tips olivaceous. Head subquadrate, 

 emarginate in front, the upper surface with a few small 

 tubercles arranged symmetrically. Antennae not so long 

 as the thorax, 20-jointed. Prothorax with the anterior 

 angles acute and porrected, the disc with two small tuber- 

 cles in front of the middle. Mesothorax gradually dilated 

 to twice the width of the head, and angulated in front of 

 the insertion of the middle legs ; the lateral margins ser- 

 rated, the disc rugose, with two small tubercles close to the 

 anterior angles, two others close together on the disc in 

 front of the middle, and a large conical erect tubercle, bifid 

 at its top, near the hind margin. The metathorax very 



broad, and angulated in front of the hind legs ; the lateral 

 margins serrated, and the disc behind the middle furnished 

 with another large, conical, erect tubercle, similarly bifid 

 at its top. The abdomen scarcely wider than the head, 

 with simple joints ; the seventh slightly widened, the ninth 

 slightly emarginate at its extremity. The body beneath is 

 varied with dirty luteous, and is glossy. The mesosternum 

 is convex, with a row of slightly elevated small tubercles on 

 each side. The metasternum irregular and glossy, with 

 several tubercles, and the abdominal segments simple ; 

 the seventh and eighth ventral segments are very short ; 

 the ninth large and operculiform, angulated at its base be- 

 neath ; the extremity of the dorsal segment armed with 

 two very short small styles. The legs are short and robust ; 

 the fore legs simple, the four posterior femora dilated and 

 dentated beneath ; the four hind tibiae subcompressed and 

 slightly angulated near the base and apex on the inner 

 margin. 



Plate II. Fig. 8. The male, of the natural size. 2 a. The 

 upper portion of the body seen laterally. 2 b. The terminal 

 segments of the abdomen seen laterally. 



