Eois is a genus of tropical moths in the family Geometridae. It was first described by Jacob Hübner in 1818. Caterpillars of Eois species are most commonly green with darker markings, but species with fully dark caterpillars also exist. They are specialized feeders associated with Piperaceae species, with sparse additional records on Chloranthaceae species. Adults are typically small, with diverse wing shape, color and patterning across the genus.

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