Anisogomphus ceylonicus (Sri Lankan Clubtail)

[sebbe67]

Not found since its description, almost 130 years ago. The wider area of the type locality was completely changed during the last century. The species may already be extinct. It is not present in any of the large odonatological collections from the island made by entomologists over the last 50 years (NHM Basle (Switzerland); NMNH - Smithsonian Institution (USA); Lund University (Sweden); and University of Vienna (Austria)). Also, it was not found during the assessor's surveys in recent years (1995, 2001 and 2003).

www.redlist.org/search/details.php?species=59729&tab=all

[Sebbe]

Now known as Anisogomphus ceylonicus

This is the only "lost" dragonfly endemic to Sri Lanka which have not been rediscovered in recent years, it is still only known from the female holotype collected over 130 years ago. However, survey efforts around the type locality has not been appropiate.

Source

- Bedjanič, M., Conniff, K., van der Poorten, N. & Šalamun, A. (2014): Dragonfly Fauna of Sri Lanka: Distribution and Biology, with Threat Status of its Endemics. Pensoft Publishers. www.pensoft.net/book/12977/dragonfly-fauna-of-sri-lanka-distribution-and-biology-with-threat-status-of-its-endemics

[surroundx]

A second specimen was collected on 18 March 1962. However, it was originally described as the new taxon Anisogomphus solitaris, until synonymised with A. ceylonicus by (Bedjanič & Poorten, 2013).

Source:

Bedjanič, Matjaž and Poorten, Nancy van der. (2013). On the synonymy of two enigmatic endemic clubtails from Sri Lanka (Anisoptera: Gomphidae). Agrion 17(2): 44-47.

[surroundx]

Sumanapala, A. P., Ranasinghe, T. and Sumanapala, D. (2022). Rediscovery of Anisogomphus ceylonicus (Odonata: Gomphidae) based on its larva. TAPROBANICA: The Journal of Asian Biodiversity 11(1): 35-37.

[koeiyabe]

www.iucnredlist.org/species/200030437/173365264

Common name: Sri Lankan Clubtail