Melanism and Melanochroism in British Lepidoptera. 



I Demy Hvo., bound in Cloth. Price 2/6). 



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," etc., 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 whic)i has been followed up in 

 Mr. Tutt's series of papers on ' Melanism and Melanochi-oism.' " 



The British NoctuaB and their Varieties. 



(Complete in 4 volumes. Price 7/- per vol.). 



The four volumes comprise the most complete text-book ever issued on the Noctuides. 

 It contains critical notes on the synonymy, the original type descriptions (or descriptions 

 of the original ligures) of every British species, the type descriptions of all known 

 varieties of each British species, tabulated diagnoses and short descriptions of the various 

 phases of variation of the more polymorphic species : all the data known concerning the 

 I'are and reputed British species. Complete notes on the lines of development of the 

 general variation obser\'e'i in the various families and genera. The geographical range 

 of the various species and their varieties, as well as special notes by lepidopterists who 

 have paid particular attention to certain species. 



Each volume lias an extended introduction. That to Vol. I deals with " Creueral 

 variation and its causes" — with a detailed account of the action of natural selection in 

 producing melanism, albinism, cfec. That to Vol. II deals with "The evolution and 

 genetic sequence of insect colours," the most complete review of the subject published. 

 I'hat to Vol. Ill deals with " Secondary Sexual Characters in Lepidoptera," explaining 

 so far as is knoMn, a consideration of the organs (and their functions) included in the term- 

 That to Vol. l\ ilc;ils with " The classification of the Noctua\" with a comparison of the 

 Nearctic and PaUcnrctii- Noctuides. 



The first subscription list comprised some 200 of om- leading Biitish lepidopterists. 

 and up to the present time some 500 complete sets of the work have been sold. 

 The treatise is invaluable to all working collectors who want the latest information on this 

 group, and contains large quantities of material collected from foreign magazines and the 

 works of old British authors, arranged in connection with each species, and nok to be. 

 found in any other pulilished work. 



To be obtained from H. E. PAGE, " Bertrose," Gellatly Road, Hatcham, S.E. 



From all parts of the World. 



PRESEEVED LAEViE : IMAGINES (well set). 



Life-histories carefully arranged and Avell-mounted in cases, for Museums,. 



Schools, &c. 



Cases to Illustrate various phases of Mimicry. 



Living Lopidopterous Eggs, Larvae and Pup» ; Birds' Eggs ; Stufi'ed Birds' 



Skins; Shells; and all other Zoological objects. 



Living eggs, larva; and pupte, of the following species in season; — Papilio iiuicImlvi^ 



Aporia cratacji, Picrix ddplidice, Thecla w-alhitm, Apatura iris, Vanei^sa antiopa, Mclitaea 



cinxia, Achemntia atrupos, Sphinx _convolvuli, S. pinastri, Dcilephila euphorhiac, Sesia 



sphegiformin, Deiopeia piilchella, Gallimorpha hera, Cerura hicuspis, Lophopteryx carmr- 



lita, Catocdla fraxini, Geometra papilionaria, Lypris reticulata, &c. 



The Editor of TIte EntomologisV.s Record writes : — " I know nothing in this particular 

 direction so well-suited for educational purposes as your excellently mounted ' Lifehistories 

 of Lei>idoptera, Hymenoptera, &c.' One could wish that there were three or four typical 

 cases in every Primary and Secondary School in Europe. Certainly everyone engaged 

 in educational wojli, in the British Isles at least, would use these cases if they knew of 

 them." Send for List to— - 



ARNOLD VOELSCHOW, Schwerin, JYVecklenburg, Germany, 



