The Scottish Naturalist. 217 



TRIFASCIATA Bkh. (1794); inipluviata Hb. (after 1797). Com- 

 mon. Amongst alders. Ascends to 1200 feet. 



Distribution — East. Tweed Forth Tay Dee Moray §00 

 West. Solway Clyde § § Hebrides 



Lat. 54°4o'-58°3o'. Range in Europe. Central and northern. 

 Type. Centro-septentrional. Type in Britain. British. 



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

 Food-plant. Alder. 



SORDIDATA F. (1794); eliUata Hb. (after 1797). Abundant. 



Nemoral. Ascends to about 1700 feet. 

 Distribution — East. T\veed Forth Tay Dee Moray Suther- 

 land Orkney § 

 West. Solway Clyde § § § 

 Lat. 54°4o'-59°io'. Range in Europe. Northern and cen- 

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

 British. 



Time of Appearance — Imago. July, August. Larva. May, June, 

 Food-plant. Sallow, &c. 



Many forms occur, but as all pass one into the other it seems undesirable 

 to mention the names that have been applied to some of the more marked. 



CIDARIA Tr. 



SITERATA Hufn. (1769); psitticata Schiff. (1776). Common. 



Nemoral. 

 Distribution — East. Tweed § Tay Dee Moray 000 



West. Solway Clyde % % o 

 Lat. 54°4o'-57°4o.' Range in Europe. Central, &c. Type. 



Central. Type in Britain. British. 



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

 August. Food-plant, Various trees. 



MIATA L. Common. Nemoral. Ascends to 1200 feet. 

 Distribution — East. Tweed Forth Tay Dee Moray Suther- 

 land o o 

 West. Solway Clyde § West Ross o 

 Lat. 54°4o'-58°3o'. Range in Europe. Central and northern. 

 Type. Centro-septentrional. Type in Britain. British. 



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

 August. Food-plant. Various trees. 



CORYLATA Thiib. Common. Nemoral. Ascends to 1500 feet. 

 Distribution — East. § Forth Tay Dee Moray §00 



West, g Clyde Argyle West Ross 



o 

 o 



