The Scottish Naturalist. 375 



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

 Food-plant. ' Low plants. 



SORDIDA Bkh. {1792); anceps Hb. (1804). Not very 

 common. Agrestal, pascual. 



Distribution — East, g Forth Tay Dee Moray 000 



West. Solway Clyde 000 



Lat. 54°4o' / -57°5o". Range in Europe. Central (S. Sweden?). 

 Type. Central. Type in Britain. British. 



Time of Appearance — Imago. June. Larva. September- April ? 

 Food-plant. Low plants. 



O 



Lat. S1°S°" Range in Europe. Britain, North Germany, 

 South-west France, central and south Sweden, &c. Type. 

 Occidento-central. Type in Britain. English. 



Time of Appearance — Imago. July. Larva. ? Food-plant. ? 



CRYMODES Gn. 



exulis Lef. ; Hadena assimilis Dbld. Rare. Ericetal and 

 nemoral. Ascends to upwards of 1000 feet. 



Distribution — East, o § Tay [Dee] Moray g g g 



West, o Clyde Argyle g g 



Lat. 55 5o"-57 5o". Range in Europe. Scotland, Iceland, 

 Greenland, Labrador. Type. Boreal. Type in Britain. 

 Scottish. 



Time oe Appearance — Imago. July. Larva. September-May. 

 Food-plant. Grasses (roots). 



The Scottish form of this interesting insect was (not unnaturally) for 

 some time considered to be a distinct species, Hadena asstmitis Dbld.* 

 It is now, however, generally admitted to be a form of the excessively vari- 

 able Crymodes exulis Lef., whose headquarters are in Iceland. Closely 

 allied species are found in the Alps, Pyrenees, and Norwegian mountains. 

 The Iceland insect (of which I have seen a series) appears to be generally 

 smaller than ours, and much more variable in its colours and markings. 

 All the Scottish specimens, that I have seen or heard of, are tolerably simi- 

 lar in stature and colour (agreeing with the description in Stainton's Manual, 

 I., p. 274), and would seem to constitute a distinct variety or geographical 



