220 LEPIDOPTERA. 



spotted throughout with white; hinder cilia white ; hind wings 

 smoky white, reticulated in front with faint brown lines. 



There seems to be little variation in this species, but 

 occasional specimens have a reddish spot on the dorsal 

 margin near the base. 



On the wing in Septem1)er and October, and after hyber- 

 nation in April. 



Larva apparently undescribed. 

 June and July on birch. 



The moth is to be found in its northern haunts sitting 

 upon the trunks of birch trees in mild weather at any time 

 from September till April. Its only known localities with 

 us are in Scotland, and so far as I can ascertain are confined 

 to Perthshire, Moray, and Aberdeenshire. Abroad it has a 

 rather extensive range in hill districts through Central 

 Europe, Northern Italy, Livonia, Finland, Sweden, Norway, 

 and South and East Russia ; in North America it is recorded 

 from the Ontario district of Canada. 



Genus IG. PERONEA. 



Antenna^ thread-like, slender ; palpi rather long, porrected 

 straight from the face ; abdomen rather broad and flattened ; 

 fore wings without fold, shape graceful, costa much arched 

 from the base ; apex pointed : disk ornamented with one or 

 more tufts or buttons of raised scales ; hind wings ample, 

 smooth. 



We have twenty species, several of which are variable in 

 so extraordinary a degree that any attempt at tabulation of 

 them is practically useless. 



Labva plump and often a little flattened. On the leaves 

 of trees, shrubs, and herbaceous plants, usually drawing 

 together the shoots and younger leaves. 



L P. cristana, L. — Expanse f to | inch (18-22 mm.). 

 Fore wings elongated, costa steeply arched at the base. 



