IIELOTA THIBETANA. 105 



base of the claw-joiut and that of the claws themselves 

 pale fulvous. 



Head strongly punctured except on the clypeus where 

 the punctures are finer; on the disk, between the eyes, 

 an indistinct l|-shaped elevation which has the open side 

 directed towards the clypeus ; the mandibles are finely and 

 closely punctured. 



Prothorax broader at the base than long , narrowed and 

 emarginate in front, bisinuate at the base where the acute 

 lateral angles are directed inwards in consequence of the 

 regularly curved sides which are very coarsely crenulate, 

 each of them having 8 or 9 crenulations , the middle lobe 

 subtruncate; the anterior angles protruding; the upper 

 surface rugosely punctured and provided with some more 

 sparingly punctured raised patches and glossy tubercles 

 which are arranged quite as in Helota sinensis Olliff. The 

 scutellum strongly transverse. 



Elytra widest at some distance behind the shoulders , then 

 slightly narrowing and , near the apex , more suddenly 

 narrowed in a concave line ; the apices are dehiscent at 

 the suture and acutely pointed; the lateral margins , espe- 

 cially at the apical third, minutely and distantly serrulate. 

 The elytra are strongly and closely punctate all over, 

 more closely, however, on the outer half than along the 

 middle where the punctures are moreover somewhat larger 

 than on the head and pronotum ; the sutural interstice is 

 impunctate and accompanied by a regular stria of small but 

 deeply impressed punctures ; the elytra are provided, besides 

 with four small convex flavous round spots , with several 

 more or less roundish or narrow and elongate glossy black 

 tubercles of different size , arranged on each elytron in 

 six longitudinal rows of which the first (that on the scu- 

 tellar region) is very short ; the convex flavous spots, which 

 are nearly equal in size to each other , are situated in the 

 3rd row; near to the lateral margins the tubercles are 

 very narrow , elongate and more strongly raised ; the acute 

 apices have each a sharply raised keel along the middle , 



Notes from the Leyden Museum, Vol. XVI. 



