The Spiral Organ Responsible for Producing Sound Signals,  an Essential Taxonomic Character in the Phylogenetic Analysis of  the Genus <i>Hamadryas</i> (Nymphalidae: Biblidinae): The Case of <i>Hamadryas chloe chloe</i> (Stoll) [1787] from South America

<table>Spiral organ of <i>H. chloe</i>: (a) membranous internal discs, (b) internal arrangement of the membranous discs, and (c) detail of the spiral organ in the wing. Scale 1 mm.</table>

International Scholarly Research Notices

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Figure 2

Figure 2: The Spiral Organ Responsible for Producing Sound Signals,  an Essential Taxonomic Character in the Phylogenetic Analysis of  the Genus <i>Hamadryas</i> (Nymphalidae: Biblidinae): The Case of <i>Hamadryas chloe chloe</i> (Stoll) [1787] from South America 

Figure 2 | The Spiral Organ Responsible for Producing Sound Signals,  an Essential Taxonomic Character in the Phylogenetic Analysis of  the Genus Hamadryas (Nymphalidae: Biblidinae): The Case of Hamadryas chloe chloe (Stoll) [1787] from South America 