TRIFID^. 279 



Such a circumstance happened two or three years ago on 

 Cannock Chase, Staffordshire, where it was found for a short 

 time in multitudes. The female, however, is never obtained 

 in anything- approaching to the abundance of the males. 

 Such an occurrence of numbers as that alluded to on Can- 

 nock Chase seems almost unprecedented ; but ordinarily it is 

 found, and in some years not uncommonly, on heaths in 

 Surrey, Sussex, Hants, Dorset, various parts of Devon and 

 Cornwall^ and usually more rarely in Buckinghamshire, Not- 

 tinghamshire, and Derbyshire, locally in Lancashire, and 

 rarely in Yorkshire and Cumberland. I think, however, 

 that further observation will show it to be more generally 

 'distributed in the south, west, and midland counties. In 

 South Wales it is found in Carmarthenshire and Pembroke- 

 shire, both upon the hills and on the coast ; and in the north 

 on Cader Idris, at Barmouth, and at Dolgelly. In Scotland 

 it seems to be generally distributed in suitable localities, 

 except perhaps in West Eoss, the Hebrides, and Shetland. 

 It has been taken in the Orkneys. The Isle of Man also is 

 one of its localities ; and in Ireland I have taken it on the 

 rocks overhanging the sea at Howth, Dublin. It is found 

 abundantly on the curious round hills which overlook Belfast, 

 and at the Giant's Causeway ; also elsewhere in the counties 

 of Derry, Donegal, and Sligo, and in more moderate numbers 

 in Cork, Waterford, Wicklow, and Galway. Abroad its range 

 seems to be very restricted — confined, so far as can be ascer- 

 tained, to France and Central and Western Germany. 



Genus 67. CARADRINA. 



Antennas short, threadlike, ciliated ; eyes naked, without 

 lashes ; thorax smooth, but with a very faintly indicated back 

 tuft ; abdomen small, not crested ; fore wings of rather even 

 breadth, not long, very blunt, almost truncate behind ; normal 

 pattern tolerably complete, but obscure ; hind wings thin, 



