114 LEPIDOPTÉROLOGIE COMPARÉE 



in the spring of this year (191 2), the majority of my brother 

 entomologists in London at ail cvents were of opinion that 

 Cœnonympha tiphon no longer existed in the Principality. A 

 single example labelled " N. Wales " in the collection of my 

 friend Mr. W. G. Sheldon of Croydon, had inspired me with the 

 hope that it might still linger in its aforetime localities; but the 

 alleged captor had no recollection either of the spécimen in ques- 

 tion, or the locality from which I supposed it to hâve been derived. 

 However, Mr. Kerr was able to throw some light upon the matter, 

 and incidentally to confirra the only récent published report of 

 tiphon in Wales to which I shall allude later on. He wrote early 

 in May " I hâve from time to time worked the northern half of 

 the Principality pretty well for Macro-Lepidoptera. There is no 

 doubt that C. davus is extremely scarce in North Wales, and I 

 hâve not seen it for years. This is diffîcult to understand as there 

 are thousands of acres in N. Wales of precisely the same nature 

 of ground as that upon which davus occurs so freely in Scotland... 

 Some twenty years since I took a few spécimens (I think in the 

 middle of July) in the locality mentioned in the old books, viz., 

 between Bala and Festiniog. . . ' 



" The district is a wild stretch of moorland, mostly grouse 

 moors with large bogs between stretches of heather at an altitude 

 of from 1000 to 1500 ft. though the peaks reach up to some 

 2500 ft. " 



The authority alluded to by Mr. Kerr is James Francis Stephens 

 {Illustrations of British Entomology, Vol. I, p. 6j, 1828) who 

 says... " the Rev. W. T. Bree informs .me that he took the latter 

 (i. e. Hipparchia polydania, Haworth) " ( = our tiphon, Rott.) " in 

 great abundance (and kindly supplied me with spécimens) on the 

 mountains between Bala and Festiniog, Merionethshire, though 

 amongst them was a single spécimen of //?'. Iphis " ( = .-*), and 

 it is agreeable to reflect that after so many years Mr. Kerr and 

 Mr. Arkle together hâve been successful in re-establishing tiphon 

 upon its native heaths in Wales. 



