Bu'. 48, Div. of Entomology. U. S. Dept of Agricultu'e. 



Plate XV. 



Old Galleries of the Spruce Destroying Beetle. 



a, (iPKivi's on till' Miriiiic <i| tin- WO"! i>l' a trn- lluil liml \n-ru lU'iul hImiiiI twi-lve 

 years; '», wouimIs. ar iiiiiiiii|plt'tr i.'iillcrifs, in tinrk i>i livini; Irrc: unnml lilU'd 

 with |iiti'h; <-. irmi <lfiul in-r: >/. inmi living; Irci'.in whirli M>nicnf du' uiiinxls 

 wtTo lu'iilin^': <, from olil ilnnl m-v. tin- >4i|i\vimi(1 ni wliicli wn> ilcrayinK. 

 (From Bill. '2S. n. s., I>iv. i>f KntoinoloK'v, V. S. I)c|>t. «if AKrirulturo. < 



