( ix ) 



Also several recently described species of S. Indian Fulgo- 

 ridae, together with the <J of Euryhrachys tomentosa, Fabr., 

 which has only recently been recognised. In this sex the 

 green colour of the tegmina has almost disappeared, the pale 

 fasciae are almost obliterated, and the wings are dark with 

 a white band on the apical area. 



Notes on Mimicry in Oriental butterflies by Col. 

 T. Jermyn. — Prof. Poulton said that he had recently received 

 the following interesting notes, and had tried to induce the 

 author to communicate them in person. Col. Jermyn, being 

 unfortunately prevented from coming, had forwarded with 

 his manuscript the illustrative specimens now exhibited to 

 the meeting. 



" I have one or two examples of mimicry, which have 

 struck me for some time as rather specially interesting, in a 

 collection of Indian butterflies made during the last twenty 

 years or so. I have long intended to write to you regarding 

 them, but going on duty again put them out of my mind. 

 Being at home again, and having just read your very interest- 

 ing address to the Linnean Society, I am now doing as I 

 intended. 



"1. Two series showing steps in development of diaposematic 

 or reciprocal resemblance between Papilio agestor, Gray, and 

 Danais tytia, Gray, — In the model Danais (Caduga) tytia, 

 Gray, there is a characteristic black marking running from 

 base of f.-w. along the costa across the end of the cell and 

 along vein 4 to the margin. This is copied in typical P. 

 agestor by a similar line, which, however, cuts diagonally 

 across the cell at some distance before the end, and is, as far 

 as I have seen, constant. In the specimens of agestor govindra, 

 Moore, however, which I have from Mussoorie, this marking 

 grades from almost complete absence to a perfect copy as in 

 typical agestor. This marking seems to me interesting as 

 being an attempt to obliterate part of the outline of the 

 large Papilionine f.-w. cell, thus producing a superficial resem- 

 blance, in shape as well as size, to the smaller Danaine cell. 

 It is also interesting that this mimetic feature is apparently 

 not yet entirely established, or possibly is undergoing reversion, 

 in the geographical race govindra. 



