224 Lloyd's natural history. 



This species is found in most parts of Central Europe. It 

 expands about an inch. 



The ground colour is pale grey, thickly sprinkled with 

 yellowish-brown and reddish-brown atoms. The usual trans- 

 verse lines are replaced by rows of brown dots. In the centre 

 of both fore- and hind-wings is a small reddish ring, filled in 

 with white. The hind-wings are nearly square. 



The Dingy Mocha. 



The larva feeds on sallow. It is bright apple-green, with a 

 light brown head. There is a light greyish dorsal line, finely 

 edged with dark green, as well as two waved greyish sub-dorsal 

 lines, and a white spiracular area sometimes blotched with pink 

 or pale violet, and black spiracles. On each segment from the 

 fifth to the ninth is an oblique smoky spot extending into 

 the spiracular area. 



The pupa is greyish-white, with smoky streaks on the wing- 

 cases, and a light grey longitudinal line over the middle of the 

 back, with black dots on each side. 



The Moth appears from May to August. It is the rarest 

 species of the genus found in England. 



FAMILY ID^ID^. 

 This is a very extensive family, including Moths of small or 

 moderate size, with the antennae simple, or finely pectinated in 

 the male ; palpi short ; proboscis prominent ; abdomen smooth ; 

 and hind-tibiae often swollen in the male; often with only 

 one pair of spurs. The wings are generally rather short and 



