cxlv 



Vice-Presidents, nominatiou of, i. 



Victoria Nyanza, and the bearing of the facts on the explanation of mimicrj' 



by natural selection, Psevdacraea eurytus liohleyi, its forms and its models 



on the islands of Lake, 84. 

 Zygaena transalpina, some Italian races of, exhibited, ix ; long series of, 



exhibited, xlviii; Z. ephialtes, series of, exhibited, xlviii. 



PROC. ENT. SOC. LOND.5 III, IV, V, 1920. 



