CAPTURES AND FIELD REPORTS. 257 



One day I netted a specimen of L. duhia which had its left lower wing 

 rather crippled. This wing was crusted with the black, peaty mud of the 

 pools about. The pupa-case, then, is probably always in the water. 

 In the second of our ambitions we got on " gradely," as they say in 

 Lancashire. We found no less than four davus: localities — and far be 

 it from me to say where they are — nay, far be it from me to say more 

 than that the numbers of the butterfly were satisfactory. There ought 

 to be five localities, but from the fifth davm has long since been 

 removed by over-collecting. Any indication of a similar process on 

 the remaining spots will probably result in a curtain between davufi 

 and the public, and so history will repeat itself. For davus — at any 

 rate the Delamere form — is a handsome insect, and variable. To the 

 entomologist who has a weakness for " spots " and " under sides " it 

 is unique. These eye-like markings vary from the size of a pin's head 

 to about a quarter of an inch across. As to shape, they are usually 

 circular ; but there is a form which has them oval, and there is another 

 where the spots are acutely pointed towards the wing-margins, and 

 remind one, in shape, of ears of oats or barley. Again, the ground- 

 colour of the under sides is sometimes white, and the large, basal, 

 brown area of the secondaries is divided into what look like a couple 

 of deeply-indented leaves. Still, the upper surface is frequently so 

 handsome and so well spotted that it is often puzzling which side to 

 shov/. If the upper surface be dark, the spots numerous and large, 

 and the lower wings almost black — a fine but infrequent form — then 

 there can be no doubt about the matter. Lycana aijon has been, on 

 certain Delamere heaths, in even greater numbers than last year. We 

 did not take one. But the splendid Xenieophila rnssjila — aglow with 

 yellow and crimson — did not get ofi" so easily, even in the tropical heat, 

 when we could catch it, which was not always. At the electric lamps 

 there has been a marked falling-oft' in the numbers of certain species — 

 for examples, Amphidasys hetularin (I took a fine intermediate form on 

 the night of June 1st), Xotodonta dirtcea, X. dictm/ides, Xylophasia 

 vwnoylyjiha (polyodon), Sinerintlius ocellatus, and S. populi. On the 

 other hand, I have to report three species new to the lamps, as far as 

 I know — A. Htrataria {prodroviaria}, one, April 18th; A. derivnta, one, 

 May 14th ; and Abraxas nhuata, one, July 3rd. Other occasional 

 visitors were — Drepnna binaria {hainula), one, July 8th ; Leiicoim 

 salicis, one, July 17th; and Zenzera pyrina {asciiU), about a dozen in 

 July. The first brood of Plusia festiica appeared early in May, the 

 second on July 20th. The hot, sometimes tropical, weather from 

 June 20th to July 21st was no doubt responsible for the early appear- 

 ance of the second brood. — J. Arkle ; Chester. 



Odonata and Lepidoptera at Llandrindod (Radnorshire). — Mr. 

 J. Lyon Denson, of Chester, whilst staying at Llandrindod Wells in 

 the first half of June, kindly sent me the following species which he 

 captured there. Odonata : Caloptenjx viryo, sixteen males, four females. 

 Lepidoptera : Pierh bmssica, P. rapes, Euchlo'e cdrdainines, ten Aryyuuis 

 eiiplu-osyne, Pararye meyara, Ccenonympha pamphihis, five Ilesperia 

 sylvanus, Phytometra vir'idaria {mnea), and a larva of Vanessa polychloros 

 which spun up, but unfortunately emerged a cripple. The fine weather 

 for insect-hunting broke up on the 12th, and people had to take to 

 overcoats again for a week. — J. Arkle ; Chester. 



