( cxxix ) 



tary, there were present on the undersides a marginal row of 

 white spots to the hindwing, which on the upperside only 

 showed clearly in Lycorea atergatis. In other respects the 

 appearance was very similar above and below. 



From the same locality but forming a small subsidiary 

 group were : Olyras crathis, Dircenna olyras and Athesis 

 clearista. The two foi-nier had been recognised as remarkably 

 like one another from the time of their discovery, but the last 

 of the three in the $, with wings closed, made a closer re- 

 semblance than the other two to one another, when also at 

 rest. The case was especially interesting in that the Athesis 

 on the upperside could hardly be called mimetic, particularly 

 in the ^, while the Olyras and the Dircenna were very much 

 alike above. All these three species, as well as the species 

 already mentioned in the principal group, occurred together. 



From Santos, S. E. Bi'azil, were shown the principal members 

 of the synaposematic group to call attention to a member of 

 the group that had neither been mentioned by Mr. W. F. H. 

 Blandford in the Proceedings of the Society for 1897, p. xxiv, 

 nor had Mr. J. C. Moulton included it in his paper in the 

 Transactions for 1909, pp. 591 et seq. The species was Peri- 

 copis isse, a Hypsid moth. Hiibner's figure does not show 

 the broad yellow streak in cell of hindwing, and as he gave 

 no locality it is possible the insect from S. E. Brazil may be 

 distinct. The insect has all the characteristics of the group, 

 and on the wing the exhibitor mistook it for Lycorea halia, 

 the slow flight coupled with the very similar coloration making 

 them quite indistinguishable. The specimen was caught 

 February 27th, 1910, and on the same day in the same place 

 he also took Heliconius narcaea, Eueides diaTwisa and Lycorea 

 halia. Included with these was a specimen of Melinaea ethra 

 and one of Tithorea jyseudethra. It was remarkable that both 

 the last, although members of the Ithomiinae, were quite rare 

 and very decidedly mimics and not models. Mention was 

 made of the fact that Burchell, w^ho spent about two years 

 in Southern Brazil, only took one M. ethra and no specimens 

 of either T. pseudethra or the moth P. isse. 



In reply to a question from Prof. Poulton, Mr. Kaye said 

 that the Heliconius was quite as common as the Lycorea. 



PROC. ENT. SOC. LOND., IV. 1912. I 



