Cryptic genetic and wing pattern diversity in a mimetic Heliconius butterfly.

Abstract excerpt

Despite rampant colour pattern diversity in South America, Heliconius erato exhibits a 'postman' wing pattern throughout most of Central America. We examined genetic variation across the range of H. erato, including dense sampling in Central America, and discovered a deep genetic break, centred on the mountain range that runs through Costa Rica. This break is characterized by a novel mitochondrial lineage, which...

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