VARIATION. 28 



Cljtilm varlm, Tiicplun-ua jialudosus, T. niiiricana var, dheoideua, Rha- 

 (/(inijcJia tcstacea, (irinu>i»i liinatitfi, etc. On nearinp; tho falls one 

 specimen of Tdi'jihonts Dhsruni^ was captured — a ft:oo(l series of this 

 desirable species bein^;- taken higher up on the mountains the follow- 

 ing day. Continuing our efforts with the sweep-net, we took Conjui- 

 hitrs tr><sfllatiis iiud ( '. cii/m'its with the variety (ifnii/inosiis, amongst the 

 latter of which the nuiles largely predominated, being especially 

 abundant on bracken. Aji/kiiUks atcr and lapponiDH Avere plentiful 

 both in their usual habitat and on wing, and one specimen of A. tristis 

 was secured. J'ddahnis alpinKs and < 'on/inhitrs (jHciriis by beating, 

 Liddcs liuuicrah's from fungi on rails at ilic falls ; and Li'!<tcru 

 jiiibi's<'('iis, from moss (?) completes (with the addition of FAatcr 

 pmnnniw, taken later on near Bangor) what, from a coleopterist's point 

 of view, must appear a somewhat meagre list ; but what we lacked in 

 captures was amply made up for by the brilliancy of the day and the 

 rich beauty of the scenery of this, perhaps, the most picturesque of 

 Welsh glens.— E. J. Burgess-Sopp, F.E.H. 



^^ARI ATION. 



Rare aberrations of Nonagria cannae. — Amongst a long series 

 of this species bred from pupte obtained in the Norfolk Fens last 

 August are two forms which I have never seen before amongst the 

 many hundred specimens examined at different times ; one, a female, 

 has the primaries a bright rosy red, the other, a male, is an extreme 

 melanic form, both the primaries and secondaries, and also the thorax 

 and abdomen, being of a very deep brownish-black. — W. G. Sheldon. 

 Nov. 17th, 1898. 



A melanic aberration of Acidalia aversata. — During the month 

 of May last my son found a Geometrid larva crawling on the Bishop's 

 palings at West Wickham, which without feeding changed into a pupa 

 in a small pill-box ; the imago emerged in June, and turned out to be, 

 so far as my experience goes, an aberration of A. aversata which is 

 unique, and very striking. The cilia, thorax, anal tuft, legs, head, and 

 antenna) are normal in colour, the wings and abdomen black. — W. G. 

 Sheldon. Nov. 17th, 1898. 



Variation of Hydrilla palustris. — I have four specimens of H. 

 jtaltistiix in my cabinet, and they differ so much from one another that 

 it seems worth while to note the differences : (1) Siicciincn taken Inj Mr. 

 A. Hdiiiilitim in Jane 1894. — The forewings are of a rich dark brown 

 colour (similar to the ordinary form of liasina tvnchrasa) rather lighter 

 beyond the elbowed line, which therefore becomes distinct. The dis- 

 coidal spot forms a black dot, and there are traces of a black spot at 

 the reniform. (2) Sped men taken hij Mr. A. J. Hodi/es, Jane 1894. — 

 Uniform, clear pale brown, slightly ochreous in tint, markings quite 

 distinct, consisting of a dark discoidal spot and reniform, dark elbowed 

 and subterminal lines, but no trace of the irregular transverse lino 

 between the discoidal spot and the base, mentioned by Mr. Tutt 

 f Varieties of British Xoetnae, vol. i., p. 14H). (8) Specimen taken hjf 

 Mr. S. Baileij, June 1898. — Similar in colour to No. 2, but unfor- 

 tunately much rubbed. The irregular transverse line, mentioned as 

 being absent in the last specimen, very distinct. (4) Sjurinien taken 

 by Mr. S. Uaileij, June 1898. — Uniform blackish-grey, with no brown 



