68 Farmers’ Bulletin 1169, 
Prevention.—A ‘wire screen, up to half an inch mesh, wrapped 
around the base of the tree so that it reaches about a foot above ground 
and several inches into the ground, which fits snugly at the top and 
is an inch or two away from the bark the rest of the way, will prevent 
the beetles from laying their eggs in it. 
LEOPARD MOTH.* 
Recognition of work.—The death or dying of limbs on otherwise 
healthy shade trees in cities along the Atlantic seaboard from eastern 
Massachusetts to southern New Jersey and in the Hudson River Val- 
Fic. 48.—The leopard moth: a, Adult female; 6, adult male; c, larva; d, empty pupal 
case. Enlarged. (Howard and Chittenden.) 
ley is in many cases traceable to the destructive work of the cater- 
pillars of the leopard moth. In cases of severe attack, especially on 
young trees, growth is checked and, when the trunk is girdled, death 
follows. In the region of its occurrence the leopard moth has proved 
to be a most serious menace to shade trees. 
Habitats and seasonal history —The leopard moth was introduced 
from Europe about 40 years ago, but fortunately its spread has 
been very slow. The caterpillar of this moth is a wood-boring insect, 
and feeds on the living wood in branches and trunks of deciduous 
trees. Evergreens are not attacked. From the time it hatches out of 
the egg, about two years pass before the caterpillar (fig. 48, ¢) stops 
388 Zeuzera pyrina Fab, 
