PLATE II 



— ♦*- 



FIG. 



12-15 represent a mimicry-ring ' composed of four immune 

 species belonging to three different families and four 

 different genera. 



12. Heliconius eucrate, Bahia. 



13. Lycorea halia, Bahia. 



14. Mechanitis lysimnia, Bahia. 



15. Melin^ea ethra, Bahia. 



r6, 17. Perhybris pyrrha, male and female, S. American 

 ' Whites ' (Pierid.e). The female mimics an immune 

 Heliconiid, while the male shows only an indication 

 of the mimetic colouring on the under surface. 



l8, 19. dlsmorphia astynome, male and female, also belong- 

 ing to the family of ' whites,' and mimicking immune 

 Heliconiids ; A white spot on the POSTERIOR WING OF 



THE MALE IS ALL THAT REMAINS OF THE ORIGINAL ' WHITE 

 COLORATION. 



20. Elymnias phegea, W. Africa, of the family Satyrides. 



.MIMICS THE FOREGOING SPECIES. 

 2T. ACR/EA GEA, AN IMMUNE W. AFRICAN SPECIES. 

 22. DANAIS GENUTIA, AN IMMUNE DaNAID FROM CEYLON. 



23. Plymnias undularis, female, one of the mimics of Fig. 22. 

 The male, which is quite different, is figured on 

 Plate III (Fig. 24). 





