368 
LEPIDOPTERA. 
Fig. 4, male), the white-marked Orgyia or tussock-moth. 
It is to the eggs of this insect that the late Mr. B. H. Ives, 
of Salem, alludes, in an article on “ insects which infest 
trees and plants,” published in Hovey’s “ Gardener’s Maga¬ 
zine.” * Mr. Ives states, that, on passing through an apple 
orchard in February, he “perceived nearly all the trees 
speckled with occasional dead leaves, adhering so firmly to 
the branches as to require considerable force to dislodge 
them. Each leaf covered a small patch of from one to two 
hundred eggs, united together, as well as to the leaf, by a 
gummy and silken fibre, peculiar to the moth.” In March, 
he “ visited the same orchard, and, as an experiment, cleared 
three trees, from which he took twenty-one hunches of eggs. 
The remainder of the trees he left untouched until the 10th 
of IMay, Avhen he found the caterpillars were hatched from 
the egg, and had commenced their slow but sure ravages. 
He watched them from time to time, until many branches 
had been spoiled of their leaves, and in the autumn were 
entirely destitute of fruit, while the three trees which had 
been stripped of the eggs were flush with foliage, each limb, 
without exception, ripening its fruit.” These pertinent re¬ 
marks point out the nature and extent of the evil, and sug¬ 
gest the proper remedy to be used against the ravages of 
these insects. 
In the New Eno:land States there is found a tussock or 
vaporer moth, seemingly the same as the Orgyia antiqua^ the 
antique or rusty vaporer-moth of Europe, from whence possi¬ 
bly its eggs may have been brought with imported fruit-trees. 
The male moth is of a rust-brown color, the fore wings are 
crossed by two deeper brown wavy streaks, and have a white 
crescent near the hind angle. They expand about one inch 
and one eighth. The female is gray, and wingless, or with 
only two minute scales on each side in the place of wings, 
and exactly resembles in shape the female of the foregoing 
species. The cater])illar is yellow on the back, on which 
* Vol. 1. p. 52. 
