Bui. 48, Div. of Entomology, U. S. Dept of Agriculture. 



Plate XVI. 



:"V>fc r ' 



Work of the Yellow Pine Wood Engraver. Galleries in Inner 

 Bark and Surface of Wood. 



About one-third natural size. I Author's illustration. Bui. 32, n. s., Div. of 

 Entomology, U. S. Dept. of Agriculture.) 



