106 



Mr. Montgomery exhibited a bred specimen of Bombyx 

 guercils, in which the right fore-wing was entirely absent. 



Mr. Barnett exhibited a bred series of Cidaria truncCita 

 (russata) from ova laid by a female captured on June ioth, 

 at West Wickham. They were all of them remarkably 

 smoky and approaching var. perfuscata. 



Mr. Merrin communicated a paper entitled " Colour in 

 Nature." 



Mr. Claude Morley, F.E.S., communicated a paper 

 entitled " Insects and the Balance of Nature: Elementary 

 Notes on Ichneumons." 



NOVEMBER gth, 1899. 



Mr. A. Harrison, F.L.S., F.E.S., President, in the Chair. 



A Special Pocket-Box Exhibition was held. 



Mr. Mc Arthur exhibited a series of Triphcena comes, var. 

 cnrtisii, from the island of Hoy, the most northern locality 

 in the British Isles where it is known to occur; a series of 

 Epanda lutulcnta, var. luneburgensis and var. sedi, from the 

 Orkneys ; a series of Agrotis cinerea from near Brighton, 

 including the darkest female he had ever seen ; a very dark 

 variety of Arctia caia ; and several specimens of Dianilxcecia 

 carpophaga of the form, with snowy-white ground moderately 

 mottled with ochreous and fuscous markings. 



Mr. Robert Adkin exhibited a series of Boarmia repandata 

 from the Hebrides, the Isle of Man, various parts of Scot- 

 land, England, and Ireland. A wide range of variation was 

 represented. 



Major Ficklin exhibited a short series of Dianthcecia 

 luteago, var. fie klini, one or two specimens showing a tendency 

 to the yellow form, var. lowei, of Guernsey. 



Mr. Kaye exhibited a long and varied series of numerous 

 species of Sphingidae taken by himself in Jamaica, Trinidad, 

 and South America, including Macroglossinae : Enyo lugubris ; 

 Chcerocampinae : Chcerocampa ncchns, Chcerocampa (Deilonchc) 

 tersa, Deilephila lineata, Argeus labruscce ; Ambulicinae : Am- 

 bulyx strigilis, A . rostralis ; Sphinginae : Cocytius antceus, and 

 var. anteas, Amphonyx cluentius, Phlegetlwntius rusticus, Proto- 

 barce cingulata, P. jamaicensis, Dilophonota oenotrns, D. cllo ; 

 together with Pscadosphinx tetrio. 



Mr. H. Moore exhibited specimens of the tropical Ameri- 

 can bumble-bee Eulema dimidiata, and read the following 

 note on its share in the fertilisation of Catasetum tridentatum, 



