Sawyer, Monohammus confusor Kirby 



1 Adult, much reduced 



Urographis fasciatus DeG. 



2 Adult 



White-spotted sawyer, Monohammus scutellatus Say 



3 Adult 



Red cedar bark beetle, Phloeosinus dentatus Say 



4 Typical gallery in Arbor vitae 



Pityogenes sp. 



5 Work in white pine 



Pityophthorus sp. 



6 Work under hard pine bark, and probably that of Callidium anten- 



na t u m Newm. 



786 



1 



