The Scottish Naturalist. 201 



TITHONUS L. Local and not common. Pascual ? 

 Distribution — East. o o Tay 00000 

 West, o Clyde West-Ross. 



Lat. 55°3°"-57°5 "- Range in Europe. Nearly throughout. 

 Type. European. Type in Britain. British. 



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

 Food- Plant. Grasses. 



hyperantus L. Common, except in the north. Nemoral. 

 Distribution — East. Tweed Forth Tay Dee g o o o 



West. Sohvay Clyde § West-Ross o 

 Lat. 54°5o"-57°4o // . Range in Europe. Central and north- 

 ern (except the polar regions). Type. Centro-septentrional 

 and -oriental. Type in Britain. British. 

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

 Food-plant. Grasses. 



Ab. Arete Mull, (underside with white spots, not eyes). 



Occurs with the type. 



CCENONYMPHA Hub. 

 PAMPHILUS L. Abundant. Ericetal. Ascends to 2500 feet. 

 Distribution — East. Tweed Forth Tay Dee Moray goo 



West. Sohvay Clyde Argyle West Ross g 

 Lat. 54°4o // -57°5o // . Range in Europe. Nearly throughout. 

 Type. Territorial. Type in Britain. British. 



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

 Food plant. Grasses. 



TIPHON Rott. (1775) ; Davus F. (1777); ? Typhon Hw. 



1. Var. Philoxenus Esp. (Roth/icbi Stgr.). Local. Ericetal. 

 Distribution — East. 00000000 



West. Sohvay 0000 

 Lat. Range in Europe. Britain and Southern 



Holsatia. Type. English. Type in Britain. English. 



Time of Appearance— Imago. June, July. Larva. July-May. Food- 

 plant. Rhynchospora alba. This is the form known in Britain as Davus or 

 Rothliebi. .From the next var. it differs in its colour darker above, the larger, 

 more numerous and distincter eyes on underside of the wings, often visible on 

 the upper surface, and the less distinct pale blotch on the upper surface of the 

 hind wings. This form and the next never occur together, and the food-plants 

 of the larvae are probably different. The larva of this form feeds on Rkyiuhospora 



