80 PLATE DXXXIX. 
This is a fpecies of moderate fize, allied in habit to Silpha obfcura. 
The prevailing colour is blackifh, inclining to grey, dull and without 
glofs: the thorax is brownith and rugofe, with a filky hue and fome- 
what filvery. The two fexes are diftinguifhed by the termination of 
the wing-cafes, this in one being much finuated, and forming a ditiin@ 
lobe, the other nearly entire.—This lafl mentioned infect is the Silpha 
opaca of fome writers. 
PLAWE 
