Disparoneura ramajana

[sebbe67]

Not found since description, more than 30 years ago. The species might be already extinct. It is not present in any of the large odonatological collections from the island made by entomologist 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 recent surveys by the assessor (in 1995, 2001 and 2003). Since no really exhaustive odonatological faunistic survey, covering appropriate localities in different seasons, has been made by odonatologists in order to find any remaining populations, the species does not yet qualify as Extinct (EX). More field research is urgently needed. Despite the fact that the type locality is protected in the frame of Horton Plains National Park, at best the species is probably very local and populations are likely to be small.

[sebbe67]

www.redlist.org/search/details.php?species=59720&tab=all

[Bowhead Whale]

What is the "Disparoneura" genre, exactly?

[Melanie]

Dragonflies

bowheadwhale said:

What is the "Disparoneura" genre, exactly?

[Bowhead Whale]

What is the difference between "disparoneura" and "macromia"?

[Melanie]

Well they are represent two different families of dragonflies:

The insect family Macromiidae contains the dragonfly species known as cruisers or skimmers. They tend to fly over bodies of water (and roads) straight down the middle. They are similar to Aeshnidae in size, but the eyes are green and just barely meet at the top of the head.

Macromiidae is sometimes considered as a subfamily of Libellulidae. It contains three genera and 125 species worldwide.

Females of this family lack an ovipositor at the end of the abdomen and lay their eggs by dipping the abdomen in the water as they fly over. Ovipositing is usually done without a male.

Naiads are found in rivers, streams, and lakes where there is water movement. They crawl in debris at the water's bottom and wait for prey

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Disparoneura is from the family Protoneuridae (commonly known as pinflies).

[Bowhead Whale]

Thanks for the explanation.

[Sebbe]

This species is now considered to be a synonym of Elattoneura leucostigma which was rediscovered in May 2009.

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]

de Fonseka, Terence. (2000). The Dragonflies of Sri Lanka. Colombo, Sri Lanka: WHT Publications. 303 pp., 20 pl. [Corrigenda and Addenda] [WARNING: 6.6 MB file]