149 THE CANADIAN ENTOMOLOGIST. 
in mind the differences when the one follows the other. Again, the eggs: 
Fig. 17. of the Tent Caterpillar are- 
oot YU deposited in bracelets of two: 
Wes > 
NAN NAS RS an \ \\N 
y 
or three hundred on the twigs 
of the trees about midsummer, . 
but do not hatch out till the 
following spring ; those of the 
Web-worm are deposited in 
little clusters upon the leaves. 
about the middle of June, and 
hatch out early in August.— 
The Tent Caterpillars, when 
fully grown, are over an inch 
and a half in length, covered 
with sparse hairs, blackish in 
colour, ornamented with blue 
and with either a white stripe 
or aseries of white spots along 
the back; the Web-worm is 
much smaller, more hairy, in 
general colour varying from 
black to blue and greenish and. 
with a broad blackish stripe 
along the back. Further, the moths produced from the former belong to. 
the family Bombycidæ, and are of a rusty red or pale brownish colour, 
with the fore wings crossed in the one species with two pale lines, in the 
other with two dark ones; the moths of the latter belong to the family 
Arctiidæ, and are of a pure white colour, free from any markings whatever 
upon the wings, Lastly, the former pass the winter in the egg; the latter 
in the pupa state. 
Having now related the principal characteristics that distinguish /Z. 
textor from our two species of CZsiocampa, it is unnecessary to give any 
further description of the insect, any indefiniteness being done away with, 
we trust, by the illustrations prefixed to this paper. 
The Fail Web-worm feeds upon the leaves of a great many kinds of 
trees, few indeed—except the evergreens—appearing to come ainiss to it. 
It seems to be especially fond of the Wild Cherry, Hickory, Ash, Elm, 
Willow, Apple, Oak, Birch and Button-wood. 
