Endemic to Madagascar and among the world's rarest, the "Hypolimnas dexithea" or "Madagascar Diadem" butterfly. (Photo credit: Observation.org) Published in April by Italian publisher "Libreria della Natura", the work "The Diurnal Butterflies of Madagascar" fills a vast scientific void that has hindered Malagasy entomology for over forty years. Led by a quartet of international scientific authorities — Emilio Balletto, Francesca Barbero, Luca Casacci and British specialist David Lees, undisputed expert on local lepidopteran fauna — this monumental 640-page book immediately establishes itself as the essential compass for island ecosystems. The authors' ambition is to comprehensively inventory and map all 325 species of day butterflies identified in the territory, the vast majority of which prove strictly endemic. Conceived as an indispensable field tool, the book integrates dichotomous keys by families and genera, as well as photographic plates detailing male and female specimens and updated distribution maps. Although designed by European researchers, the strategic choice of French-language publication serves a precise objective: to provide students, academics and conservation actors on the ground with direct and immediate access to the data. Compiled by Maminirina Rado