﻿120 THE ENTOMOLOGIST. 



THE BUTTERFLIES OF THE BUCKS. CHILTERNS. 

 By H. Rowland-Brown, M.A., F.E.S. 



(Continued from p. 80.) 

 NYMPHALlDiE. 



25. Dryas paphia, Hb. I have uot come across this species 

 in any profusion ; occasional specimens in the middle region, 

 when brambles are in flower to attract. Professor Carlier in- 

 cludes it iu his High Wycombe list. Mr. Spiller reports it from 

 the west; scarce in 1914; and there are old records in the 

 eastern districts from the neighbourhood of Drayton-Beauchamp 

 and Halton. 



Earliest date observed, August 3rd, 1899 ; latest, August 

 16th, 1906. Both these dates are obviously misleading as to 

 time of emergence. Mr. Spiller records a specimen on June 

 10th, 1893, and another as late as September 17th, 1890 

 ('Entomologist,' xxiv. p. 3). 



26. Argynnis aglaia, L. Undoubtedly the commonest of the 

 down Fritillaries. The males often abundant where thistles are 

 in flower. From the Wycombes to Drayton-Beauchamp, Aston- 

 Clinton, and Halton. Mr. Spiller speaks of fifty counted in one 

 morning on a hill-slope surrounded by woods as they successively 

 turned at the top of the hill. 



Earliest date observed, June 25th, 1914 ; latest, September 

 12th, 1907. 



27. A. adippe, L. Much rarer, and more local than the 

 preceding. Mr. Spiller says (in lift.) that it used to occur at 

 Kingston Wood, "now turned into a pheasant farm, and the 

 butterfly gone " ; also formerly near Whiteleaf with B. euphrosyne. 

 I have found it not uncommon in a certain dingle through which 

 a wood path runs, and where some seasons there are lines of 

 tall thistles. Professor Carlier reports it from High Wycombe; 

 the Rev. H. H. Crewe from Aston-Clinton and Drayton- 

 Beauchamp ; the Rev. J. Greene from Halton. 



Earliest seen, July 2nd, 1908, when the males were abundant ; 

 latest, September 12th, 1907 — worn. In the extraordinarily 

 hot spring of 1893 the Rev. F. A. Walker captured a specimen 

 near Chalfont Road Station on June 8th ('Entomologist,' xxvi. 

 p. 221). 



28. Brenthis euphrosyne, L. This is another butterfly which 

 escaped my notice for many years on the hills themselves, but 

 Mr. Nander Hedges has informed me that it is locally common 

 in the eastern Chilterns. I eventually found it in May, 1912, on 

 the adippe ground, and also at Little Hampden the same day. I 

 expect it is pretty well distributed in the enclosures on the south 

 incline. 



Earliest seen. May 30th, 1912; latest, "June 10th, 1914; 



