84 The Scottish Naturalist. 



There appears to be only one brood in Scotland. Scottish examples are much 

 paler than English, and have the streak that runs from the tip to the inner mar- 

 gin of the wing more strongly marked and much clouded. 



lacee, tin ARIA L. Not uncommon. Nemoral. Ascends to 

 1000 feet or upwards. 



Distribution — East. § § Tay Dee Moray §00 

 West. Solway Clyde § West-Ross o 



Lat. 54°4o"-58°. Range in Europe. Northern and cen- 

 tral. Type. Septentriono-central. Type in Britain. 

 British. 



Time of Appearance — Imago. June. Larva. August, September. 

 Food-Plant. Birch. 



Also apparently single-brooded in Scotland. D. hamula may occur in the 

 • south of Scotland ; D. unguicula is exclusively a beech-feeder, and cannot be 

 expected except as an introduction ; D. curvatula (not known as British) has 

 nearly as wide a European range as falcataria and feeds on alder. 



NOTODONTID^l Boisd. 

 HARPYIA Ochs. 



PUBCTJTjA L. Not uncommon. Nemoral and ericetal. 



Distribution — East. Tweed Forth Tay Dee Moray § o o 



West. Solway Clyde § West-Ross o 

 Lat. 54°4o // -57°4o // . Range in Europe. Northern and 



central. Type. Septentriono-central. Type in Britain. 



British. 



Time of Appearance— Imago. June, July. Larva. August, Septem- 

 ber. Food-plant. Sallow and poplar. 



vintjla L. Common. Nemoral. Ascends to 2000 feet. 



Distribution — East. Tweed Forth Tay Dee Moray §00 



West. -Solway Clyde Argyle West-Ross o 

 Lat. 54°4o"-58°. Range in Europe. Throughout. Type. 

 European. Type in Britain. British. 



Time of Appearance— Imago. May, June. Larva. June-September. 

 Food-plant. Willow, aspen, die. 



A Lapland variety is nearly black. H. bicuspis and bifida may perhaps be 

 found, and so may erminca, a species of central Europe closely allied to vinu la. 



LEIOCAMPA Steph. 

 TKEMULA CI. (1759); didcea Esp. Not common. Nemoral. 



