312 Records of the Indian Museum. [Voi,. VIII, 



the posterior process lengthily extended backward beyond the 

 hind femoral knees, the base subnodulose : median carina very low 

 and undulate ; lateral lobes deflexed and armed with acute trans- 

 verse spines. First articles of the posterior tarsi narrow, not at 

 all dilated, the first and second pulvilli acute, the third longest 

 and flattened below. 



Male and female, entire length of body 18-5 — 22'5 mm.; 

 pronot. I7"5 — 21 mm.; post. fern. 6-5—9 i^^^- 



Five specimens : three were found ' ' under stones ' ' on the 

 bank of a stream, Yembung, iioo ft., Jan. 14, 1912; two were 

 found " among stones" on bank of the Dihang river, Janakmukh, 

 600 ft., Dec. 17, 1911 [Kemp). 



This is one of the largest species of Criotettix, and has the 

 general appearance of a Scelimena. It is darker coloured than 

 grandis. 



3» Criotettix orientalis, sp. nov. 

 (PL XV, figs. 4, 4a.) 



Body not so large as the preceding, coloured greyish-cinerous. 

 Vertex subequal in width to one of the eyes, ampliate backward; 

 frontal costa arcuate, not at all sinuate, divided barely above the 

 paired ocelli, and somewhat narrowly sulcate forward; antennae 

 inserted distinctly between the lower part of the eyes; paired ocelli 

 placed between the middle of the ej-es ; eyes globose and scarcelv 

 elevated. Pronotum deplanate, transversely convex between the 

 shoulders; dorsum granose, slightly tuberculate and rugose; 

 median carina low, thin, and irregularly crassate-undulate ; 

 prozonal carinae convergent backward ; posterior process extended 

 only slightly beyond the hind femoral apices in the short-wing 

 form, or lengthily extended beyond them in the long-wing form; 

 lateral lobes distinctly deflexed laterally and armed on each side 

 with an acute spine directed very slightly obliquely backward. 

 Eh'tra eloiigate-subovate, externally punctate; wings explicate, 

 extended to the apex of pronotal process or beyond. Femoral 

 margins entire ; hind tibiae armed with spines, the first and second 

 pulvilli of the posterior tarsi acute subspinose, the third flat 

 below. 



Male, long and short-wing forms, entire length of body 11 — 14 

 mm. ; pronot. 10 — 13 mm. ; post. fem. 7 mm. 



Two males from Dibrugarh, N.-E. Assam,. Dec. 17, 191 1 

 {Kemp). 



This species resembles C. tricarinatus , but is larger and the 

 pronotum is more rugose. 



Genus Thoradonta, Hanc. 



4. Thoradonta spiculoba, Hanc. 



Hancock, Mem. Dept. Agricult. India, iv, p. 138, 1912. 

 One male from Dibrugarh, N.-E. Assam {Kemp). 



