( xxxiv ) 



{Mygnimia aviculus, Sauss.), and of a large lepidopteron [Scoliomlma, n. g., 

 Butler, insignls, n. s., Butler) mimicking a large hymenopteron [Triscolia 

 patricialis, Burm.). 



Mr. A. G. Butler made some remarks upon the very interesting cases 

 of mimicry alluded to, and contributed a description of the moth, for which 

 he formed a new genus of /EgeriidcB, coming next to the African genus 

 Toosa (= Ninia). He also referred to the remarkable mimetic resemblance 

 between the two species of Myrmecopsis, Newman, with their distinctly 

 petiolated abdomen, and species of Polyhla or Agenia. Mr. Butler said it 

 was both interesting and curious to find that in India the female Argynnis 

 Niphe, Linn., mimics Danais Chrysippus, StoU ; while in Australia the 

 sexes of the representative of A. Niphe (A. inconstans, Butl.) are similar, 

 the Australian Danais being so small that it is not worth mimicking. The 

 well-known case of Papilio Merope, Cram., was also interesting : further- 

 more, that the Catocalbm were directly opposed to Mr. Lewis' views, since 

 the upper surface of the hind wings, which are least exposed to the action 

 of the sun's rays, are the most brihiantly coloured portion of these insects. 



Mr. C. 0. Waterhouse remarked upon and exhibited specimens of the 

 following two cases of mimicry : a species of Myocoris (Hemiptera) and a 

 species of Joppa (Hymenoptera) from the Amazons ; a dipteron allied to 

 Dasypogon, the hymenopterous Abispa australis, and the coleopterous 

 Hesthesis ferrugineus, M'L., from Australia. Mr. Butler said the lepi- 

 dopterous genus Dycladia would complete the trio in the first-mentioned 

 case. Mr. Waterhouse did not think it possible that the Longicorn could 

 be parasitic on the wasp, as was suggested by Mr. Pryer. Mr. Fitch 

 thought if there was any community of habitat it would be that the wasp 

 nested in the burrows of the Longicorn. 



Several members took part in a discussion upon the various points raised 

 by Mr. Fryer's criticism of Mr. Lewis' paper. 



New Part of ' Trayisactions.' 

 Part IV. of the ' Transactions' for 1884 was on the Uible. 



