INSECTS INJURIOUS TO FOREST TREES 509 



For several years the U. S. Bureau of Entomology has been 

 introducing many of these parasitic and predaceous insects, 

 hoping that some would prove to be efficient here. A measure 

 of success has attended these efforts and it is quite possible that 



FIG. 240. Brown-tail moth, Euproctis chrysorrhoza, adult. (About 1/4 

 larger than natural size.) 



when enough of these natural enemies have been established in 

 this country the pest may be overcome, and, in the future, 

 kept in reasonable control. 



The Brown-tail Moth (Euproctis chrysorrhaa) . Like the 

 gipsy-moth the brown-tail was introduced from Europe, but 



FIG. 241. Brown-tail moth, Euproctis chrysorrhaa, larva. (About 1/4 

 larger than natural size.) 



much more recently. It attacks orchard trees and almost 

 all kinds of shade trees except the evergreens. The moths are 

 snow-white, with a conspicuous brown tuft at the end of the 

 abdomen. They fly by night, and are attracted by lights, so 

 that shade trees and fruit trees in towns are usually first to 



