9 Of) [December, 1908. 



of mimic instead of model. Mr. II. M. Edelsten, a tube containing ova of Leucania 

 brerilinea, in situ, laid wilhin the sheathing leaf of a dead reed-stem found in 

 Norfolk in 1JJ08. Mr. A. H. Harrison, numerous examples of Apleeta nebulosa, of 

 the form robsoni, bred from parents taken in Delamere Forest, being proportion in 

 breeding grey form, 25 per cent. ; var. robsoni, 51 per cent. ; and var. thompsoni, 

 24 per cent. Mr. A. E. G-ibbs, a case containing a series of Eeeres argiades, taken this 

 year at various altitudes in the Vosges region, showing a fine large form ; Lycsena 

 bellargus, a ? from South Devon, with the wings on the left side, especially the 

 secondary, splashed and streaked with male colorations ; Lyaena lean's, $ , also 

 taken in South Devon, measuring only 19 mm. in expanse; and an example of 

 ChrysopAanus phlseas from Ilarpenden, approaching on the right side ab. schmidtii, 

 the ground colour of the primary being silvery-white, with the exception of a broad 

 streak of copper colour extending from the base of the wing where it is widest, to the 

 transverse row of black spots. Mr. E. M. Dadd exhibited specimens of Erebia ligea 

 from various German localities, and a small series of E. euryale, with examples of var. 

 adyle taken at Zermatt and Pontresina ; and one each of vars. ocellaris and extrema 

 from the Stilfer Joch. Among the Pontresina adyte was a single specimen which 

 might be placed among the ocellaris without the slightest hesitation ; although not 

 quite so dark as any of these. The exhibit also included one specimen of the form 

 euryaloides, which is accredited to euryale in both the above-mentioned works, 

 occurring with the adyte at Pontresina. He suggested as a result of his observa- 

 tions that the facts point to one of two things. Either all these forms were forms of 

 one species, or if any division were to be made, it should be by drawing the four- 

 spotted forms ligea and euryale together, and raising the three-spotted form adyte to 

 the rank of a species with the forms ocellaris and extrema and euryaloides as sub-forms ; 

 also forms of Lycxna corydon (a) from England and the Thuringer Wald ; (b) var. 

 apennina from the Sabria mountains ; (c) the form from the south of France, and (d) a 

 form from Berlin for which he suggested the name borussia as being distinct from all 

 other forms, first in the £ by its greater size, secondly in the extreme width of the 

 black border of the fore-wings. Mr. Dadd then proceeded to exhibit a pair of 

 Scodiona belgiaria x&r.favillacearia, and a typical male for comparison, this being the 

 only form of the species occurring on the heather around Berlin ; and four examples 

 of butterflies which he suggested as hybrids, viz., L. corydon x bellargus from Airolo, 

 Cosnonympha satyrion x pamphilus from Wengen, Colias hi/a/e x palseno from 

 Obertsdorf, and Tieris napi x rapse from Berlin, apparently exactly intermediate 

 between the two species. Prof. B. B. Poulton exhibited a family of eight butterflies 

 bred by Mr. G. F. Leigh, F.E.S., from ova of Charaxes neanthes. Seven of the off- 

 spring were C. neanthes, and one C. zoolina : thus proving, so far as such numbers 

 constitute sufficient evidence, what has long been suspected, viz., that these super- 

 ficially dissimilar butterflies are forms of the same species. 



Dr. F. A. Dixey, M.A., M.D., read a paper, \llustrated by lantern slides, " On 

 Miillerian Mimicry and Diaposematism. A Reply to Mr. G. A. K. Marshall." A 

 discussion followed on the whole subject in which Mr. R. Shelford spoke in favour 

 of Mr. Marshall's views, and Prof. E. B. Poulton, F.R.S., in favour of Dr. Dixey's 

 contentions.— H. Rowxand-Bkown, Hon. Secretary. 



END OF VOL. IX (Second Series). 



