Lyriothemis defonsekai spec. nov. from Sri Lanka, with a review of the known species of the genus (Anisoptera: Libellulidae)

Both sexes of the new sp. and its early instar larva are described and illustrated. Holotype 6: Ratnapura district, near Kudawe, alt. 500 m, 3-VII-2007; to be deposited at the Colombo National Museum. The habitat characteristics and species behaviour are briefly outlined. The new sp. is compared to all known congeners. It closely resembles Lyriothemis acigastra (Sel.) and L. elegantissima Sel.