172 



TREES IN" WINTER 



branches and even the trunk become affected. Tt borer often 

 completely girdles the branch and consequently that part of the 

 branch beyond the injury soon dies. Trees affected with leopard 

 moth borers are strikingly characteristic by their dead branches 

 at the top of the tree. Most kinds of deciduous trees are subject 

 to the attack of this pest, but the AVhite or American Elm has 

 suffered most. 



Fig. 95. The Leopard Moth Larva in its burrow. (Natural size.) 



The following paragraphs are copied from the authors' summary of 

 a valuable bulletin by Britton and Cromie*: — 



*^'The moths appear about July first, the males being very 

 common around electric lights, and the females lay eggs singly or 



*Britton, W. E. and Cromie, 

 Sta. Bui. 169, 1911. 



G. A. The Leopard Moth. Conn. Agr. Exp. 



