PLATE 10. 



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EORKRS AND INSECT ClALLS. 



Monohammus con/usor Kirby, much reduced. 3, Typical gallery of Phleeosinus dentaius Say, in arbor vitas. 



Oak Fig Gall, Biorhizn /orticornis Walsh, on chestnut leaved oak, 4. Work of Pityo^;nes species in v/hite pine. 



5. Work of Pityophthorus si)ecies and a liuprestid in bard pine. 



