Taxonomy of the genus U dara ( L epidoptera: L ycaenidae) in N ew C aledonia and the W et T ropics of A ustralia, with a review of butterfly endemism in these regions

The lycaenid genus Udara Toxopeus is recorded for the first time from New Caledonia where it is represented by the newly described species U. renevieri sp. nov. The species is figured, the male genitalia are illustrated, and the taxon is compared with U. cardia (C. Felder, 1860) (from Maluku through New Guinea to the Solomon Islands and Australia) to which it appears to be most closely related. The taxonomic status of U. cardia tenella syn. nov. and stat. nov. from the Wet Tropics biome of north‐east Australia is revised and treated as a subspecies of U. cardia based on comparative evidence of the morphology of the male genitalia and wing colour pattern elements. The holotypes of both Lycaena cardia C. Felder, 1860 and Lycaena tenella Miskin, 1891 are illustrated. Patterns of butterfly endemism in New Caledonia‐Loyalty Islands and the Wet Tropics are discussed in relation to the conservation importance of these biodiversity hot spots. Estimated levels of endemism are 21% for New Caledonia and 5% (17% if subspecies are included) for the rainforest component of the Wet Tropics.