WARNING COLORATION AND ^IIMICRY 



251 



In Eastern Peru and Boli\aa — 



C Helicouius aristona. 

 -! Melinpea cydippe. 

 ( (?) ^lechauitis motlione. 



In Pernambuco — 



\ Heliconius ethra. 

 \ Median itis nessea. 



In Eio Janeiro — 



j Heliconius eucrate. 

 \ Mechauitis lysimnia.. 



In South Brazil — 



Thyridia megisto. 

 Ituua ilione. 

 Acraea thalia. 

 Eueides pavaua. 



Besides these, a number of species of Ithomia and Napeo- 

 genes, and of Xapeogenes and Mechanitis, resemble each other 

 with equal accui'acy, so that they are liable to be mistaken 



Fig. 25.— Wings of Ittma Ilione, J 



VTings of Thyridia megisto, ^ , 



for each other when on the wing ; and no doubt many other 

 equally remarkable cases are yet unnoticed. 



The figiires above of the fore and hind wings of two of these 

 mimicking species, from Dr. Fritz Miiller's original paper in 

 KosmoSy "vvill serve to show the considerable amount of 



