105 



" On the western coast of Africa the black and white species 

 of Amauris, A. niavius, and A. enceladus are very common, 

 and are accompanied by their mimics Hypolininas anthedon, 

 and H. diibius. In more Southern Africa, the butterflies 

 of the genus Nebroda have the secondaries with the disc 

 broadly yellow, and this marking is exactly m.imicked by 

 Hypolininas niima. The other examples exhibited show the 

 allied genus Pseudacrcea to be close mimics of the protected 

 Acrseine butterflies ; Acrcea euryta is very nearly mimicked 

 in both sexes, which are widely different, by Pseudacrcea 

 eurytus ; Acrcea accara by Pseudacrcea trimenii ; lastly, a 

 variety of Acrcea enceladus is of the same pattern and colour 

 as Limnas chrysippus var. alcippus. 



" The most remarkable fact in connection with the mimicry 

 of Acrcea and Pseudacrcea is, not only that the colour and 

 markings are accurately mimicked, but the shape of the wings 

 is altoi^ether quite different in Acrcea from that oi Hypo limnas ; 

 yet in the mimicking Pseudacrcea the form of the wings is 

 precisely similar to that of Acrcea; approximately in shape 

 to that of a dragon-fly. We must be clearly understood that 

 the mimicry often goes beyond a mere accurate resemblance 

 in colour by the mimic to the model, for the shape of the 

 wings of the mimic is not rarely profoundly altered," 



A discussion ensued, in the course of which Mr. Weir 

 referred to the fact that Mr. Belt had found non- scented 

 species eaten by birds, whereas the scented ones were not 

 eaten ; and Mr. South said he believed that mites do not as 

 a rule attack Danaine butterflies in collections, 



MARCH 2yd, 1893. 

 J. Jenner Weir, Esq., F.L.S,, etc., President, in the Chair. 



Messrs. L. W. Bristowe and W. Bond-Smith were elected 

 members, 



Mr, R. Adkin exhibited a small collection of butterflies' from 

 Sutherlandshire, N.B., including Pieris brassicce. L., P. rapce, 

 L., P. napi, L., Argynnis selene, Schiff, A. euphrosyne, L.^ 

 A. aglaia, L., Epinephele ianira, L., Ccenonympha typhon, Rott., 

 and Thecla rubi, L., and remarked on the general similarity 

 of the forms shown to those prevalent in the South of England.. 

 It was noticed, however, in the specimens of C. typhon exhibited, 

 that although there was a considerable range of variation in 

 colour, in none were the dots on the hindwings prominent, as 

 is the case in many of the Rannoch specimens. The speci- 

 mens of -^. selene diVid A.euphrosyne exhibited were remarkable 



