﻿ERRATUM. 

 Page 216, line 22, for E. pinicolana, read E. bimaculana. 



EXCHANGES. 

 " Cartes de Visile." — Dr. Kraatz, of Berlin, wishes to obtain Cartes of British 

 Entomologists in exchange for his own. Dr. Sharp, of Eccles, Thornhill, Dumfries- 

 shire, will be happy to receive portraits sent for that purpose. 



Iassus cruentatus. — I have many specimens of this insect to spare, and shall be 

 glad to distribute them among collectors of Homoptera who will apply to me. — B. Cooke, 

 119, Stockport Road, Manchester. 



Lepidopterist's Exchange Club. — The object of this Association, which was 

 established in 1868, is to afford a ready means of exchanging local species of Macro- 

 Lepidoptera. It now numbers 46 Members, of whom 33 sent 5,000 specimens for 

 distribution last season. For copy of rules, and all other information, apply to Herbert 

 Marsden, Secretary, Brook Street, Gloucester. 



Duplicates. — N. hispidaria, $ % , C. boreata, M. tristata, S. venosa, E. fulvago, 

 H. suasa, and pupae of D. bifida. Desiderata many : fine imagos, or healthy pupse, of 

 the Eupithecise, preferred. — Chas. Campbell, 14, Blackburn Street, Hulme, Manchester. 



Exchange Lists are inserted free. 



F 



OR SALE. — A large number of specimens of British Lepidoptera, 

 including A. cratsegi, cynipiformis, philanthiformis, B. trifolii, erosaria, hastata, 

 obliquaria, plumigera, cucullina, trepida, ocularis, straminea, australis, prsecox, rhom- 

 boidea, aurago, lichenea, empyrea, chamomillse, notha, derivalis, sanguinahs, alpinalis, 

 and many other local species. Also pupse of Machaon, fuciformis, cucullina, trepida, 

 dysodea, scrophulariae, verbasci, notha, &c, &c. 



For price lists, apply to W. H. Harwood, St. Peter's, Colchester. 



T 1ST OF THE MACRO-LEPIDOPTERA OF FOLKESTONE, 



-^ with Notes, by H. G. Knaggs, M.D., F.L.S., &c, published by the Folkestone 

 Natural History Society. 



Price Sixpence, post-free, Hy. Ullyett, Hon. Sec, Folkestone. 



In the Press, price \s. 6d. 



rpHE CABINET LIST OF THE LEPIDOPTERA OF GREAT 

 - 1 - BRITAIN AND IRELAND. By H. G. Knaggs, M.D., F.L.S. 



Now ready, Bound in Stiff Cloth, Price Is. 6d., Interleaved, 2s. 6d., 



rpHE LEPIDOPTERIST'S GUIDE, for the use of the Young 

 X Collector; by H. Guard Knaggs, M.D., F.L.S. 



OPINIONS OF THE PRESS. 



"A multura in parvoof Entomological hints and instructions." — Popular Science Review. 



" This is a very comprehensive and compact guide for the study of butterflies and moths, and with 

 but few changes would answer for the use of collectors in this country. We advise every Lepidopterist 

 to provide himself with a copy." — American Naturalist. 



"The work is one of the most exhaustive character, and is exceedingly well-arranged for practical 

 use. * * * Although really a working book it is written in a most pleasant manner, and the enthu- 

 siasm of the author is sometimes very amusing."— The Field. 



"From being a book of instructions some may think that it must be a pretty dry sort of affair- 

 like, for instance, the drill books at the Military Schools— but we can assure them it is quite the reverse,, 

 being really most interesting and amusing ; some parts of it would even entertain the only too numerous 

 Individuals who do not know a bug from a butterfly." — Canadian Entomologist. 



" We only wish there had been such a book when we first commenced Entomology. The young 

 Entomologists of this generation who can get the best help to be had for a few pence have a great 

 deal to answer for ; let us hope that their contributions to Science will be in proportion to their 

 advantages." — Secord. 



' ' The author has such a happy knack of popularizing his subject, so facile in saying a plain thing 

 in a plain way, so clear in his instructions, so hearty and enthusiastic in his work, that any one would 

 wish himself an ignoramus again to have the pleasure of such a teacher.'' — Science Gossip. 



"Although professedly written for the assistance of youth ; children of a larger growth, in whom 

 the taste has developed into a study will find an inexhaustible field of instruction in its pages." — Observer, 



"Dr. Knaggs has put together a multitude of notes, the result of years of observation and experience, 

 and such as could never hav« been prepared by any mere compiler." — Scientific Opinion. 



" It is written by a master hand, and is full of most valuable and practical suggestions."— 

 Journal of the Folkestone N. H. Society. 



To be had either direct from the author, or of the publisher, 



John Van Voorst, 1, Paternoster Row, B.C. 



