49 



The date of the appearance of the caterpillar is in 

 August and September. 



It feeds on the aspen and the poplar. 



The chrysalis is found in a very hard cocoon, fixed on 

 the bark of the tree on which the caterpillar feeds. 



CERURA VINULA. 



PUSS MOTH. 

 Plate XXXVI. Figure 10. 



Localities for this extensively distributed species are 

 York, Nafferton, Sutton-on-Derwent, Stockton Forest, 

 Bromsgrove, Brighton, Queenstown, Falmouth, Canter- 

 bury, Faversham, Ashford, Cambridge, Bristol, Carlisle, 

 Exeter, Lynton in Devonshire, Sherwood Forest. 



The situations where it is found are gardens, pool sides, 

 and other places where the willow and the poplar grow. 



The perfect insect appears in May and June. 



The caterpillar is dark green, with a prominence on 

 the fourth segment, then a brown belt bordered with, 

 white along the back, widest at the eighth segment, and 

 then narrowing gradually to the double tail. 



The date of the appearance of the caterpillar is in 

 July and August. 



It feeds on the willow, the sallow, and the poplar of 

 various sorts. 



The chrysalis is found enclosed in a very hard cocoon 

 attached to the bark of the tree whose leaves have 

 afforded nourishment to the larva. 



VOL. II. H 



