﻿210 THE ENTOMOLOGIST. 



largely from written general natural history notes kept during 

 several years. Obviously they are very fragmentary, partly 

 because my residence in the district has never been continuous 

 over a whole season or year, but has consisted of shorter or 

 longer stays at almost all seasons. 



The butterflies have to some extent made an impression of 

 relative scarcity, considering the nature of the country. Not 

 that a complete list (which mine does not profess to be) 

 would be by any means short, or uninteresting — for some of the 

 species are not our commonest forms. But I can never recall 

 meeting with butterflies in such profusion as I have sometimes 

 seen in other parts of England. For instance, a walk across the 

 South Downs near Worthing at the end of July, 1914, was 

 enlivened by the presence of Fritillaries, Lycsenids, Pieris, 

 lilpparchia semele, &c., in numbers such as could hardly have 

 failed to strike even a very casual observer. Such abundance as 

 this I have never found in the district under review. 



Hesperiid^. 

 H. malrce, N. tages, A. sylvanus, A. flava {= thamnas), all 

 fairly common. I cannot recall ever having seen A. comma. Of 

 written records, H. malvce was seen June 6th, 1903, and in some 

 numbers, June 26th, 1902. N. tages, in numbers, June 6th, 

 1903, while a single bad specimen was taken June 26th, 1902. 

 A. flava, numbers of bright, fresh specimens were seen, July 25th, 

 1902 ; a female was taken August 8th, 1902 ; and a single female 

 was captured some time in September, 1899. 



LvCiENID^. 



G. argiolus has appeared in greater or smaller numbers each 

 spring, principally about gardens in the outskirts of Henley. 

 Judging from my MS. notes, it was particularly plentiful in the 

 spring of 1900 : I recor(ied it that year as scarce from April 

 12th till about April 20th, afterwards common up till the time 

 of my departure on May Ist ; still common. May 26th-27th, 

 reappearing in smaller numbers in July, and becoming gradually 

 scarcer during August.* 



A. corydon appears to be absent from the vicinity of Henley. 

 Both Mr. Rowland-Brown and Mr. Bussey Bell record it as 

 abundant in places on the steep north-western slopes of the 

 escarpment, but the former writer states that only a few 

 stragglers come over to the south. The heavily-wooded nature 

 of the hills, and the much smaller extent and less down-like 

 character of the vegetation of the open chalky hillsides, may 

 account for its scarcity on the southern side. 



"' Frequently seen this year from the time of my arrival up to the time 

 of correcting proofs, August 13th-2Gtb. 



