Rediscovery of a long lost endemic damselfly Sinhalestes orientalis (Hagen in Selys, 1862) from Peak Wilderness Sanctuary, Sri Lanka (Zygoptera: Lestidae)

Sinhalestes orientalis (Hagen in Selys, 1862) the only representative of its genus, is an endemic and globally critically endangered damselfly in Sri Lanka. It was first collected from Rambodde, Sri Lanka in 1858 and after that no new information on this species has been available. Here, we report on the re-discovery of Sinhalestes orientalis from the Peak Wilderness Sanctuary, Sri Lanka after 154 years from its last and only record.