Overview Madagascar is unanimously recognized as a global biodiversity “hotspot”, meaning that it is one of the 25 regions characterized by the highest levels of biodiversity in the world. This contribution represents the first detailed synthesis of all available knowledge - much of it still unpublished - on a group of invertebrates, the butterflies, which play a crucial role in Madagascar’s biodiversity and ecosystems. Key Features - Coverage of all the 330 currently species of butterflies known from Madagascar. - Dichotomous key for all genera, tribes and families. - Colour plates with photos of male and female of all the species. - Detailed distribution maps for every species