8* PLATE CCCLXVIII, 



The male of this fpecies is fufficiently diftinguimed by the ere& 

 horn on the anterior part of the head, the female being deftitute 

 of this character: in other refpefts they nearly correfpond. Both fexes 

 are reprefented in their natural fize on the oppofite plate. Lives jp 

 the trunks of trees, Inhabits various parts of Europe, 



