234 



Memoirs of the Indian Museum. 



[Vol.. Ill, 



Aceraius occulidcns, Zang. 

 Text-fig. 4A. 



I have examined two specimens, both preserved in the Deutsches Entomologisches 

 Museum. One (the type) is from Mt. Kina Balu (c. 5000 ft.) in Borneo, the other is 

 from Deh, Sumatra. 



Description. — Length 48 mm. This species differs from .4. grandis var. rectidens 

 only in the presence of a stout upwardly directed tubercle on the canthus, just in 

 front of the eye. 



Text-figure 4. 



A. Aceraius occuUdens, head x 4. 



B. Aceraius tricornis, head x 4. 



C. Aceraius alutaceosternus , left mandible from 



D. Aceraius minor, head x 4. 



E. Aceraius aequidens, head x 4. 



Aceraius laniger, Zang. 



Two specimens of this species, both from Mt. Kina Balu, c. 5000 ft., are pre- 

 served in the collection of the Deutsches Entomologisches Museum. 



Description.— Length 47-52 mm. Differs from ^. kuwerti in the following charac- 

 ters only: right outer tubercle of head inchned to be more acute, apical angle of 

 supra-orbital ridge incHned to be less so ; ridge separating lateral and intermediate 

 areas of metasternum obtuse, rough ; tenth rib of elytra closely punctured and hairy 

 at shoulders as in A. occuUdens and all preceding species, the hair on the elytra all 

 shorter and closer. All these characters are apt to be variable in other species, and 

 I doubt whether this form is really as distinct from the next as at present it seems 

 to be. 



