238 COMMON BRITISH MOTHS 



of the segments six to ten inclusive. It feeds on the bramble 

 {Buhus friiticosns) during August and September, and spends the 

 winter in the chrysalis state, inclosed in a loose cocoon among the 

 dead leaves at the root of its food plant. 



Tlie Ycllow-hornt'd {Asplialia Jiavieornis) 



This is one of the earliest of our motlis, appearing on the 



wing in March, when it may be 

 ( ) attracted by means of sugar 



^^^' ,y, j'L ..^ ^!^^^ placed on the bark of the birch 

 "s '^jif :"" )i yf) (^ :/ {Bctula alba). 



The wings are grey, with a de- 

 cidedly greenish tinge, crossed by 

 '*w three dark lines near the base, 



Fig. 1;;7. -The Yellow-horned ^nd two others, which are zigzag, 



jiist outside the centre. Between 

 these two sets of lines is a conspicuous round pale spot. The 

 hind wings are greyish brown, darker along the hind margin. 



The larva, which feeds on the above-named tree, is pale greenish, 

 with both white and black dots. It rolls itself up in a leaf, and 

 seldom ventures out of the retreat thus formed. It is fully fed in 

 July or August. 



