Sinhalestes orientalis, the emerald Sri Lanka spreadwing, is a monotypic species of damselfly in the family Lestidae. The species was thought to be extinct since none have been found since it was first scientifically described in 1862. However, in 2012 this species was re-discovered by a young odonatologist Amila Sumanapala from the Peak Wilderness Sanctuary, Sri Lanka.
- Bedjanič, M. (2009). "Sinhalestes orientalis". The IUCN Red List of Threatened Species. IUCN. 2009: e.T59773A12016907. doi:10.2305/IUCN.UK.2009-2.RLTS.T59773A12016907.en. Retrieved 24 December 2017.
- Martin Schorr; Martin Lindeboom; Dennis Paulson. "World Odonata List". University of Puget Sound. Retrieved 11 August 2010.
- Sumanapala, A. P. and Bedjanič, M. (2013). Rediscovery of a long lost endemic damselfly Sinhalestes orientalis (Hagen in Selys, 1862) from Peak Wilderness Sanctuary, Sri Lanka (Zygoptera: Lestidae). Asian Journal of Conservation Biology. Vol. 2 (1): 44–47.
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