LEPIDOPTEROLOGIE COMPAREE II5 



Writing on July 5th Mr. Kerr says " I am sending you to-day 

 three unset spécimens of C. t'iphon, taken yesterday in N. Wales... 

 The insect was fairly common on a large mountain bog at about 

 1400 ft. between Bala and Festiniog. I think it must occur locally 

 throughout the whole of that wild district. Those I hâve sent are 

 typical of ail that we took... " And Mr. Arkle adds " This road 

 skirts the Afon (River) Tryweryn, and at Jthe exact spot, the 

 stream has receded a mile or so to the south and avvay from the 

 road, leaving a flat bog apparently river-deposited. This is the 

 tiphon bog — a dreary swamp without végétation save heather, 

 cotton grass, beaked rush, and hère and there an asphodel with 

 its yellow flowers and their scarlet crosses. On either side of 

 the river-valley, mountams rise abruptly over 2.000 feet high. " 

 The examples in question are brilliant and fresh, true tiphon, with 

 tawny wings, and w^ell ocellated on the under side. 



With this information before us, there is every reason to 

 suppose that tiphon may yct survive in the sea-side locality on 

 Cardigan Bay near Barmouth in the same county of Merioneth- 

 shire, where it was discovered by Mr. E. H. Greerly of that town 

 in June 1886. In that year tiplioii was taken coinmoniy on a peat 

 moss in this iieighbourhood at 110 more than 50 feet above sea- 

 level; and ail of the Middle Form. This, then, appears to be 

 the southermnost habitat of the species in Britain, for I can find 

 no records of it having been captured in the very likely mountain 

 marshes and heaths of mid and south Wales. 



Crossing the Bristol Channel into Devonshire, tradition had 

 it formerly that tipho7i was to be found on Dartmoor, where the 

 nature of the soil, and the climate is decidedly suggestive of the 

 marsh-loviiig Cœnonympha. But as long ago as 1876 the late 

 Mr. G. C. Bignell disposed of the legend. Advised by the 

 curator of the Exeter Muséum that tiphon had been taken many 

 years before on Yes Tor (2039 fl.), near Okehampton, he made 

 a thorough exploration of the country thereabouts, but without 

 success {Entomologiste Vol. IX, pp. 203-4); and I myself hâve 

 traversed much of thèse splendid moors further north, and met 



