96 THE MOTHS OF THE BRITISH ISLES. 



Other localities for it are the Norfolk and Cambridge fens, 

 Bewdley Forest in Shropshire, and Wyre Forest, Worcester- 

 shire ; it is also found in some parts of Devonshire, Suffolk, 

 Essex, and Yorks. Its range abroad extends through Northern 

 and Central Europe, southward to North Spain, Piedmont, and 

 Corsica, and eastward to Amurland, Corea, and Japan. 



The Yapourer {Orgyia a?itiqiia). 



The male has the wings rather more ample than tlic same sex: 

 of the last species, the colour is a more ochreous red and there- 

 is a large white spot at the lower angle of the fore wings, but no 

 white mark at the tips of these wings. Specimens from the 

 north of England are rather darker than southern examples. In 

 the course of temperature experiments it has been noted that 

 the colour of the moth is darkened if the chrysalids are put in 

 a refrigerator for a few weeks, and then brought into a mean 

 temperature of 40° Fahr. In the female the appendages repre- 

 senting wings ar.e somewhat larger than those of the female of 

 the Scarce Vapourer, but are quite useless as organs of flight 

 (Plate 40, Figs. 4, 6). 



In general colour the caterpillar is violet or smoky grey ; the 

 markings on the back comprise a creamy, red-dotted line 

 along the middle area, this is edged with black, and on each 

 side of it is a series of raised red spots ; the broken line along 

 the sides is yellowish, and the four brushes of hair on the back 

 are yellow, sometimes merging into brown above ; the pencils 

 of longer hairs are blackish on the ring nearest the head, and 

 dark grey or brownish on the last ring. It may be found 

 through the summer on the leaves of most trees and bushes. 

 Chrysalis blackish, glossy, and rather hairy. The cocoons are 

 spun up in the crevices of bark on tree trunks, or in the fork of 

 a twig, under the eaves of an out-house or shed, on palings and 

 fences, etc. The hairs of the caterpillar are mixed with the silk 



