NOTODONTID^. 177 



reared at Rugeley, Staffordshire, in which the two 8 marks 

 are of a shining yellow. This unusual colour does not extend 

 to the following blotch reaching the costa, and it is only 

 visible by daylight. 



On the wing in October and November. 



Larva of rather even thickness, short, plump, bristly ; 

 head round, bluish-grey, with a black spot on each lobe ; body 

 blue-grey with numerous round black spots from which 

 bristles arise ; dorsal stripe broad, composed of large yellow 

 spots, one on the back of each segment from the fifth to the 

 twelfth, in each case edged with four of the black spots ; a 

 row of similar black spots lies, in a yellow blotch, across each 

 of the second to the fourth segments, and there is a large one 

 on the thirteenth ; spiracular stripe yellow, edged above with 

 smoky-grey and a row of black spots, below with darker grey 

 which becomes greenish-grey on the under surface ; legs 

 black ; prolegs spotted with black. When younger darker 

 slate-grey, the head more bluish, with the lobes blacker, and 

 the dorsal stripe uninterrupted. When extremely young the 

 black spots and black bristles, which are long, almost exclude 

 all other markings. 



March to June on hawthorn, blackthorn, plum, pear, apple, 

 cherry, peach, apricot, almond, and even Pyrus japonica, 

 feeding quite exposed upon the leaves. In the egg through 

 the winter. 



Pupa rather stout, blunt, the anal extremity with two pro- 

 jections, each furnished with small bristles ; dull, rough 

 reddish-brown, or blackish-brown, rather powdered with 

 bluish. In a tough oval cocoon of strong silk mixed with 

 morsels of leaf, moss, or earth, on or under the earth on 

 hedgebanks, or at the bottom of a wall ; more rarely under 

 bark or even attached to a twig in a hedge. In pupa from 

 June till October or November. 



The moth flies at night, but is very rarely observed on the 

 VOL. ni. M 



