i.*I .*J 



> , 



Klu. I.— Pliotosrapli of a ixn'lioii of an aisjilc tree twig infestei] wiili 



fruit-tree bark Ijootlo, sliowiiifj the ' |iin-bi)l('s " or sln)t- 



holos" and the .shriveled bark, natural size. 



CBBTroffiTTCifCS 











-ja'^-i".f!:!^<jj(.i' 



^■r' < w:::-i5^: 





I'ui. 3.— Enlarged view of the galleries uf the fruit-tne barii 

 l)eetle, as seen on an infested limb from wliieh the 

 bark has been removed. (After Katzenberg). 



Fig. 4. — Chiropaehy.s Colon. Mueh enlarged. 

 (After Howard). 



