June to August and then spin a cocoon of silk mixed 

 with the hairs from their body, either amongst the leaves 

 and shoots or more usually against a fence, or the 

 trunks of trees. The larvae then change to deep 

 yellowish-brown pupae, from which the moths appear in 

 two or more weeks. 



Fruit trees and hawthorn hedges, etc., are also 

 attacked by the Vapourer. 



TREATMENT. 



All the cocoons that are seen in the winter to be 

 covered with eggs should be collected and burnt. If 

 there are only a few caterpillars then they may be hand- 

 picked, but if many it is best to spray the bushes with 

 arsenate of lead. 



The Pale Tussock Moth (Dasychira pudibunda). 



The handsome caterpillar of this moth is called in 

 some districts the Hop Dog. Besides feeding on hops, 

 birch, oak and hazel, it may frequently be found on Roses, 

 where, owing to its ravenous nature, it soon clears off the 

 foliage. 



The moth varies in size from if to 2^ inches across 

 the expanded wings. The male is greyish white 

 powdered with dusky scales, with a short dark transverse 

 streak near the base, and a dusky broad band towards 

 the middle ; the female is larger than the male, with 

 greyish white front wings and the central band pale grey 

 (Plate VII., Fig. 7). 



LIFE HISTORY AND HABITS. 



The moth appears in May and June and deposits 

 the eggs on the leaves ; the ova are bluish-grey in colour 

 and laid in groups, often as many as 150 in a batch. 



