opinion one way or the other. So far from proving the duality, they are 

 quite consistent with the unity of the species. And recalling the facts that 

 Curtis and Dale took both forms of female at Glanville's Wootton, that 

 Brown bred the apterous and McLachlan captured the winged form at 

 Burton, and lastly that Ritsema himself, in 1870, found pupte at Haarlem 

 from which two females emerged, of which one had rudimentary and the 

 other well-developed wings, I venture to hazard a conjecture, that if Ritsema 

 pereeveres with his breeding from Overween larvae, lie will obtain some 

 females with wings as ample as those which flew to the lamp at Huisseu. 



" In conclusion, one word of regret, a tribute to Members this Society 

 has lost. In the short period since the publication of my former paper on 

 Acentropus, of those to whom I then referred as living authors, death has 

 removed no less than three — Henry Doubleday, Edward Newman and 

 Edwin Brown." 



December 6, 1876. 



Sir Sidney Smith Saundeks, C.M.G., Vice-President, in the chair. 



Additions to the Library. 

 The following donations were announced, and thanks voted to the 

 donors: — 'Proceedings of the Royal Society,' uos. 173 and 174 ; presented 

 by the Society. 'The Zoologist' and 'Newman's Entomologist' for 

 December; by T. P. Newman. 'Entomologist's Monthly Magazine' for 

 December; by the Editors. 'The Naturalist; Journal of the West 

 Hiding Consolidated Naturalists' Society,' no. 17; by the Society. 

 'Nature,' nos. 366 — 370; by the Publishers. 'A Monographic Revision 

 and Synopsis of the Trichoptera of the European Fauna ; ' by the Author, 

 Robert McLachlan. 'British Gall Insects;' by the Author, Albert 

 Miiller, of Basle. ' The Canadian Entomologist,' vol. viii., nos. 9 and 

 10 ; by the Editor. ' L'Abeille,' no. IBQ ; by the Editor. ' La Famille 

 des Ephemerines,' par le Rev. A. E. Eaton, traduit de I'Anglais ; by 

 the Translator, Dr. Emile Joly, ' Tijdschrift voor Entomologie,' 3e & 4e 

 Aflevering, 1875-6; by the Entomological Society of the Netherlands. 

 * Eutomologische Monographieen,' von Dr. Fr. Ivlug ; presented by Edward 

 Sheppard, Esq. ' Die Schmetterlinge Deutschlands und der Schweiz,' 

 Band ii., Heft 2 ; by the x\uthors, H. v. lieinemann and Dr. Wocke. 

 'Genera Cimicidarum Europa),' disposuit 0. M. Renter; ' Capsinse ex 

 America boreali in Museo Holmiensi asservatre,' descripta} ab 0. M. Reuter ; 

 ' Bidrag till Kannedomen om Syrphus flugornas larfver och puppor,' af 

 Filip Trybom ; ' Species Tortricum et Tinearum Scandinavise,' enumeravit 



