SAMOUELLE S 



terior flat side scored and toothed) which play al- 

 ternately ; and while their vertical effect is that of a 

 saw, act laterally as a rasp. When, by this alternate 

 motion, the incision or cell is made, the two saws, 

 receding from each other, conduct the egg between 

 them into it : it is said, that the eggs increase in size 

 every day till the larvae burst from them. These are 

 usually met with the latter end of August and be- 

 ginning of September, and greatly resemble those of 

 the Lepidoptera, except that they have twenty-two 

 feet, and, when touched, roll themselves up spirally. 

 The colour is generally a frosted green. When the 

 larvae are full grown, they form for themselves an 

 oblong hard case, and this is in general attached to 

 a twig or small branch of the tree they feed upon, 

 within which they change to an incomplete pupa, 

 that remains in this state through the winter. 



It may be useful to hint to the Entomologist that, 

 during the early spring months, before the shrubs have 

 sent forth their leaves, the pupa of these desirable 

 insects may occasionally be found, and this is per- 

 haps the most successful mode of taking them. We 

 hope, in a future number, to figure the male of this 

 rare and elegant insect, and will then give the 

 specific characters of each. 



