280 Mr. K.G.Blair 07^ 



The British Museum possesses three furtlier species, 

 collected by the Thibet Expedition of IQOJi, that may be 

 assigned to this genus, though two of them differ in the 

 form of the prothorax, the sides of which are straight or 

 feebly sinuate behind, so that the posterior angles are 

 approximately rectangular. According to Reitter's ' Bestira- 

 mnngs-Tabellen ' (xlii. p. 87), this character would place 

 them in Gnathosia, but this genus has, inter alia, the thorax 

 more or less conical, widest at the base, the external apical 

 angle of the anterior tibiae not produced, etc. In other 

 respects they agree with Ascelosodis, so that it appears 

 unnecessary to erect a new genus for their reception. 



The following key, alternative to that given by Bates, ^ill 

 supplement it by the inclusion of the new species * : — 



1 (20). Sides of thorax rounded to base, posterior 



angles very obtuse or rounded 2. 



2 (15). Median lobe of head well-defined and pro- 



minent 3. 



3 (14). Base of thorax not markedly bisinuate .... 4. 



4 (9). Elytral shoulders rounded.' 5. 



5 (8). Thorax widest about the middle, lateral 



margins not reflexed 6. 



6 (7). Anterior and posterior margins of thorax 



finely bordered throughout ; median lobe 

 of head not sharply divided from lateral 

 lobe ; sides of thorax and elytra cilia te 

 beneath sen'ipes, Redt. 



7 (6). Anterior and posterior borders of thorax 



widely interrupted in the middle ; median 

 lobe of head divided from lateral lobes 

 by short distinct sulci ; sides of thorax 

 and elytra not ciliate beneath walfom, sp. n.t 



* A. ovoideiis, Fairm., from Kashmir, unknown to me, is omitted ; 

 A. inermis, Fairm., belongs apparently to Si/achis, Bates, and is possibly 

 identical with A. himalaicus. Orocina, Eeitt., with two species from 

 Turlcestan, both unknown to me, does not appear to differ from Ascelo- 

 sodis. Bates ; the latter genus was unknown to JReitter, and the labruui 

 is not normally concealed as stated by him. 



t Ascelosodis icaHoni, sp. n. 



Is very similar to A. serripes, Redt., but, in addition to the differences 

 given above, the head is very finely and sparsely punctate, rather more 

 strongly so towards the vertex, the punctures becoming strigose above 

 the eye. From A. interynedius, Bates, which it resembles in the sides 

 of the thorax and elytra being not ciliate beneath, it differs in size, in 

 the sharply-separated median lobe of the head, in the shape of the 

 thorax, etc. 



Length 5|-7^ mm. 



Habitat. Gyaugtse, 13,000 ft., June 1904, Thibet Expedition {H. J. 

 Walton). 



Numerous examples. 



