Bui. 48, Dv, nf Ent«,T.oiogy, U S. Dept. of A^..... tj.._-. 



Plate XIV. 



•vw* % 





Galleries and Mines of the Spruce Destroying Beetle. 

 (Kn.iii Hill, us, II. s.. Hiv. d ICntoinoJojfy, I". .>^. hcpi. ..f .\»;ri«iiliiirr.) 



