604 Mr. J. C. Monlton on some of the 2)rinci2ml Mimetic 



the way, and their place is taken by the highly distasteful 

 Danainse, so dominant in the Oriental and Ethiopian 

 Regions. In the former, both Danaini and Ewploiini (here 

 alone shown as models) are dominant ; in the latter, the 

 Danaini. The examples figured on Plate XXXIV are 

 valuable for comparison with those from the New World ; 

 for they prove that, with an entirely different superficial 

 appearance, the same bionomic principles are equally pre- 

 valent in the tropics of both hemispheres. The Banainie 

 of the Old World represent and take the place of the 

 Itliomiinie in the New, and exhibit, although with very 

 different colours and patterns, the same conspicuousness 

 at rest and in flight, the same countless swarms of in- 

 dividuals, the same Miillerian resemblances between 

 dominant species, and the same mimetic attraction for 

 less abundant species of other groups. 



APPENDIX. 



Melinxa ixinlalis, Bates, n. sub-sp. madeira. 



MelinfBtt madeira appears to be a MS. name of Staud- 

 inger's. Professor Poulton and Mr. F. A. Heron have 

 very kindly spent much valuable time in an endeavour to 

 trace a description of it, but without success. Thinking 

 that the discrimination of this sub-species of Ifclinmt 

 2)ardalis, Bates, may be a convenience to naturalists, a 

 description is here added. 



Melinsea madeira, n. sub-sp. 



This sub-species differs from M. pardalis, Bates, in the 

 following points on the upper side. Fore-iving : the thick 

 black inner marginal border of 2^a.rdalis (which is limited 

 by the median nervure and first median nervule) is 

 reduced to a narrow, superiorly somewhat diffuse, dark 

 marginal edging in madeira. The large triangular black 

 spots, one below the outer part of the cell and the other in 

 the basal part of the cell itself, are reduced by more 

 than half in madeira. Exterior to these spots in 

 madeira are two yellow oblique angulated bands joined 

 about the second median nervule ; in pardalis, however, 

 the inner one has become suffused with the mahogany 

 ground colour (with the exception, in one example, of a 



