Idea lynceusIdea lynceus, the tree-nymph, is a species of nymphalid butterfly in the Danainae subfamily. It is found in South East Asia.The wingspan is about 135–165 mm.The larvae feed on Aganosma corymbosa.SubspeciesListed alphabetically: I. l. favorinus Fruhstorfer, 1910 I. l. fumata Fruhstorfer, 1897 I. l. lynceus I. l. niasica Fruhstorfer, 1903 I. l. reinwardti Moore, 1883 I. l. thalassica Fruhstorfer, 1910