142 



THE CANADIAN ENTOMOLOGIST. 



in mind the differences when the one follows the other. Again, the eggs 



Fig. 17. 





of the Tent Caterpillar are 

 deposited in bracelets of two 

 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 a series 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 Bombycidos, 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 

 Arctiidas, 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 H. 

 textor from our two species of Clisiocampa, 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 Fall Web-worm feeds upon the leaves of a great many kinds of 

 trees, few indeed — except the evergreens — appearing to come amiss to it. 

 It seems to be especially fond of the Wild Cherry, Hickory, Ash, Elm, 

 Willow, Apple, Oak, Birch and Button-wood. 



