Minute oak bark beetle, Pityopthorus minutissimus Zimm. 



1 Work in red oak, upper part showing galleries, the lower exit holes 



Eyed Elater, Alans oculatus Linn. 



2 Adult 



Large carpenter bee, Xylocopa \'irginica Drurj' 



3 Work in siding, the ].■( inch galleries being matle in a 5 s inch board. 



The enlargements in the gallery represent cells and the exit is seen 

 at the upper part of the tinder portion. 



Hickory bark borer, Scolytus ([ vi a d r i s p i n os m s Say 



4 Work in liickorN', the upper portion showing ihe scored wood, the 



lower jjart the exit holes 



a4i6 



