Idionyx travancorensis

Idionyx travancorensis
Male, Ponmudi, Kerala
Conservation status
Data Deficient  (IUCN 3.1) [1]
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Odonata
Infraorder:	Anisoptera
Superfamily:	Libelluloidea
Family:	Synthemistidae
Genus:	Idionyx
Species:	I. travancorensis
Binomial name
Idionyx travancorensis Fraser, 1931

Idionyx travancorensis ^[2] is a species of dragonfly in the family Synthemistidae. It is known only from the Western Ghats of India. ^{[3] [1]}

Description and habitat

It is a small dragonfly with emerald-green eyes. thorax metallic green. There is no humeral stripe. Laterally There is a narrow oblique stripe at the level of the spiracle and another on the hinder border of metepimeron. Beneath the side is black, bordered with yellow, and with a stripe of paler yellow at its middle. Abdomen is black. In segment 2, the ventral border and a narrow apical stripe in yellow. Segment 10 has a broad carina; but without a dorsal spine. Anal appendages are black. ^[4]

The male can be easily distinguished by the shape of its inferior anal appendage and the female by its safironated wings and conical vesicle. ^[4]

Fraser (1931) states that the species occurs from 3,000 - 4,000 ft in the Western Ghats and breeds in mountain streams. Nothing else is known of its habitat or ecology. ^{[4] [5]}

See also

• List of odonates of India
• List of odonata of Kerala

References

1. Dow, R.A. (2009). "Idionyx travancorensis". IUCN Red List of Threatened Species . 2009 e.T163653A5630590. doi: 10.2305/IUCN.UK.2009-2.RLTS.T163653A5630590.en . Retrieved 19 November 2021.
2. Paulson, D.; Schorr, M.; Abbott, J.; Bota-Sierra, C.; Deliry, C.; Dijkstra, K.-D.; Lozano, F. "World Odonata List". OdonataCentral. University of Alabama.
3. K.A., Subramanian; K.G., Emiliyamma; R., Babu; C., Radhakrishnan; S.S., Talmale (2018). Atlas of Odonata (Insecta) of the Western Ghats, India. Zoological Survey of India. pp. 274–275. ISBN   978-81-8171-495-4.
4. C FC Lt. Fraser (1936). The Fauna of British India, including Ceylon and Burma, Odonata Vol. III. Red Lion Court, Fleet Street, London: Taylor and Francis. pp.  223-225.
5. C FC Lt. Fraser (1931). Additions to the Survey of the Odonate (Dragonfly) Fauna of Western India, with Descriptions of Nine New Species (PDF). pp. 455–456.