﻿New Species of Ipidae from Maine 131 



PLATE VII 

 From original photographs by Hammond. 



Fig. 10, 11. Brood biirrows of Xyleehiwus americanus n. sp. in the bark of 



white spruce. 

 Fig. 12. Brood burrows of CrypJialtts mainensis n. sp. in bark of spruce. 

 Fig. 13. Brood burrowsi of Pityophthoriis dentifrons n. sp. in the bark of 



white spruce. 

 Fig. 14. Brood burrows of PityophtJiorus shepardi n. sp. in the bark of 



spruce. 



