THE YOUNG NATURALIST. 



295 



EXCHANGE. 



Duplicates. — Larvae of Nebulosa, Thalla- 

 sina, Lubricipeda, &c, and many imagos. 

 Desiderata. — Other larvae, also Papilios 

 (Swallow-tails), from any part of the world ; 

 damaged specimens will do, if not faded or 

 worn. — S. L. Mosley, Beaumont Park, 

 Huddersfield. 



Duplicates : — Larvae of S. Pqpuli and 

 H Pisi. Desiderata: — Numerous. — A. 

 Bramwell, Prior Street, Gateshead-on-Tyne 



Duplicates. — Larvae of D. vinula. Desi- 

 DERATA-Numerous. — John D. Bland, Jun., 

 24, Windsor Terrace, Gateshead. 



Duplicates. — PapJiia, Adippe, Selene, 

 Semele, Quercus, Albicillata, Sylvata, Vim at a, 

 Ltmcophearia, Wavaria, Satellitia, and Oon- 

 ostlgma. — I. Lissaman, i, Court, 5, House, 

 Allott's Lane, Coventry. 



NOTES, CAPTURES, &c. 



Abundance of Whites, &c. — On July 

 12th, 1881, I saw two or three white butter- 

 flies flying about in Alerton Quarry. I 

 went down with my friend, J. B. Ledd, to 

 try and catch them to see what they were. 

 On our way down we happened to shake a 

 bush, and from it arose a large number of 

 whites. My friend and I shook all the 

 bushes we could get at, and I should think 

 there was no less than two hundred whites 

 in the air at the same time. They began to 

 settle again, and in a short time a heavy 

 shower came on, and after the shower we 

 could pill-box them without any difficulty. 

 We caught forty-nine, and found them to 

 be thirty-two small gaaden whites, Pieris 

 Rapes, and seventeen green-veined whites, 

 Pirns Napi. I kept six of each and let the 

 rest go. 



I also caught on the same day one small 

 tortoise shell, Vanessa Urtica, one yellow 

 underwing, and one tiger moth. — J. H. 

 Vashley, 64, Troughton Street, Edge Hill, 

 Liverpool. 



Manner of attachment of the pupa of 

 P. brassic^e. — The other day I had the 

 opportunity of watching the manner in which 

 P. brassier fastens its tail to the knot of silk 

 spun by the larva. After having got the 

 old larva skin rolled in a lump at the anal 

 extremity, the tail end of the pupa is with- 

 drawn from the larva skin, and wriggling 

 about catches hold of the silk, and by a few 

 twists fastens itself to it, the old skin being 

 then completely cast off. — S.L.M. 



Now is the time for gathering ferns, 

 mosses, lichens, and fringe for decorating 

 cases of stuffed birds. The common fern 

 or "Brake" has assumed various tints of 

 yellow, orange, green, and red, and the most 

 perfect fronds will only need breaking off, 

 and putting between the leaves of a book to 

 press. They will retain much of their colour, 

 but if they are required brighter, any tint 

 may be obtained by the application of colour 

 mixed with turpentine. Mosses and lichens 

 will simply need laying out on sheets of 

 paper and drying, and a few of the harder 

 kinds of ferns may be treated in the same 

 way. The flowers of grasses have most of 

 them got too far advanced, but rushes and 

 carices, as well as the leaves of the wood 

 rush (Luzula sylvatica), may be gathered and 

 pressed between the leaves of a book. 



BRITISH BUTTERFLIES. 



By J. E. Robson ; with figures from life by 

 S. L. Mosley. 



(Assisted by Contributors to the Y.N.) 



ALEXIS, W.V., PI. 22, Fig. 1. 



The Common Blue. 



"Alexis, W.V., Alex'is, a Roman Shep- 

 herd. Cf. Virg. Eel. ii. 1. — A.L. 



Imago.— PI. 22, Fig. 1. Male, Lilac 

 Blue, with a narrow white fringe, not intersected 



