THE (iirsv MO I M. 115 
two weeks, during which time the insect is comparatively 
dormant, while the wonderful changes take place by which 
the tissues of the worm-like caterpillar are so transformed 
that from the apparently lifeless pupa, the winged adult 
moth emerges. 
The Moth.— (Figure 7.) "From July 15 to August 15 
the winged moths emerge from the pupa?, the date varying 
according to the season and the time of pupation. The 
male is brownish yellow, varying to greenish-brown in color, 
has a slender body and expands about one and one-half 
inches. It flies by day with a peculiar zig-zag flight. 
"The female moth is nearly white, with numerous small 
black markings, heavy-bodied and sluggish, and expands 
about two inches. The female does not fly, otherwise the 
spread of the gipsy moth would be most rapid. After 
mating the moths live but a short time. The female dies 
after depositing her egg mass (Figure 3.) The winged 
moths take no food. All damage to foliage is caused by the 
caterpillars. ' ' 
The eggs remain over winter on the trees, as already 
described. Thus, there is but one brood or generation of 
the gipsy moth in a year, the different stages of which in 
their relation to each other are shown graphically in Fig- 
ure 8. 
In view of the fact that the brown-tail moth has also 
recently been introduced into the state and that it is fre- 
quently confused with the gipsy moth, the following table 
may be of service in sharply distinguishing the two species, 
which are totally different in habits and require different 
methods of control : 
