IN PARTS— ONE SHILLING. 



A NATURAL HISTORY 



QF THE 



BRITISH BUTTERFLIES, 



THEIR WORLD-WIDE VARIAI'ION AND DISTRIBUTION. 



Vol. IV. 



Commencing with the Variation and Life-histories of Agriades coridonand Polyommatus 

 icarus (with four plates of the named aberrations and varieties of the first-named species 

 together with many photomicrographs of larval and pupal structure. Similar plates of 

 P. icarus are awaiting publication.) 



Probably the finest life-histories of any species of lepidoptera ever published. The next 

 species to be treated is Aricia astrarche, a still more interesting one with regard to its 

 Varieties and Aberrations. 



Part XI. will shortly be issued. 

 Subscription for 20 parts 17s. 6d. 



BUTTERFLY=HUNTING IN MANY LANDS. 



Notes of a Field Naturalist. 



By GEORGE B. LONGSTAFF, M.A., M.D. (Oxon.), 



Late Vice-President Entomological Society, London. 



To which are added Translations of Papers by Fritz Mdlleb on the Scent-Organs 

 of Butterflies and Moths. 



With 7 Coloured Plates and other illustrations. 8vo. 21/- net (Postage 6d.) 

 LONGMANS, GREEN & Co., 39, Paternoster Row, London, E.G. 



FOR SALE, 



Tutt's " British Lepidoptera," vols. I to X. Tutt's '* British Butterflies," vols. 

 I toIIL Tutt's "British Noctuse," vols. I to IV. Tutt's "Practical Hints for the 

 Field Lepidopterist," parts I to III, with Index. There are also a few copies of 

 " British Noctus," slightly soiled, to be sold cheaply. 



A. M. COCHRANE. 



41, Wisteria Road, 



Lewisham, S.E. 



Melanism and Melanochroism in British Lepidoptera 



(Demy 8vo., bound in Cloth. Price 5/-.) 

 Deals exhaustively with all the views brought forward by scientists to account for the 

 forms of melanism and melanochroism ; contains full data respecting the distribution of 

 melanic forms in Britain, and theories to account for their origin ; the special value of 

 "natural selection," "environment," "heredity," "disease," "temperature," &c., in 

 particular cases. Lord Walsingham, in his Presidential address to the Fellows of the 

 Entomological Society of London, says, " An especially interesting line of enquiry as con- 

 nected with the use and value of colour in insects is that which has been followed up in 

 Mr. Tdtt's series of papers on ' Melanism and Melanochroism.' " 



To be obtained from J. Herbert Tutt, 22, Francemary Road, Ladywell Koad 

 Brockley, S.E. 



