Libellago greeni (Green's gem) is a species of damselfly in the family Chlorocyphidae. It is endemic to Sri Lanka.
References
- http://animaldiversity.org/accounts/Libellago_greeni/classification/
- https://web.archive.org/web/20150219172210/http://www.wht.lk/storage/book_downloads/CorrigendaAddendum.pdf