Dysphaea ethela

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Dysphaea ethela
Black Torrent Dart (Dysphaea ethela) male. (25602242838).jpg
Male
Dysphaea ethela - female 3(vagamon).jpg
Female

Least Concern (IUCN 3.1)[1]
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Class:
Insecta
Order:
Odonata
Suborder:
Zygoptera
Family:
Euphaeidae
Genus:
Species:
D. ethela
Binomial name
Dysphaea ethela
Fraser, 1924[2]

Dysphaea ethela,[3][1] black torrent dart,[4][5] is a species of damselfly in the family Euphaeidae. The insect is named after Frederic Charles Fraser's wife, Ethel Grace Fraser (née Varrall) (1881-1960), a constant companion of his collecting trips in India.[2][6]

It is found in Karnataka and Kerala and Tamil Nadu in Western Ghats.[1] This species is also known from the Eastern Ghats and central India.[7][4][8]

Description[]

It is a medium sized damselfly with black head and brown-capped pale grey eyes. Its thorax is black, marked with narrow antehumeral and humeral greenish-yellow stripes. There are another yellow stripes on the base of lateral sides. These marks will get obscured by pruinescence in old males. Wings are transparent; but evenly enfumed with brown. Abdomen is black, marked with yellow apical annules up to segment 8. There are yellow lateral stripes up to segment 6. Anal appendages are black.[9]

Female is short and robust; the yellow marks are more broad and vivid. The yellow lateral stripes continued to segment 7. Segment 8 has a narrow and 9 has a broad yellow apical annule, covering dorsal half.[9]

Habitat[]

It breeds in streams and rivers. Commonly seen perched on reeds or bushes on the river's bank or settled on rocks far inside the stream.[9][2][7][4][5]

  • The female laying eggs on a submerged plants in a slow flowing stream
  • Black torrent dart - Dysphaea ethela female.jpg
  • Black torrent dart (Dysphaea ethela) female.jpg
  • Dysphaea ethela - Black torrent dart female.jpg

See also[]

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

References[]

  1. ^ a b c Dow, R.A. (2019). "Dysphaea ethela". IUCN Red List of Threatened Species. 2019: e.T163734A122208779. doi:10.2305/IUCN.UK.2019-2.RLTS.T163734A122208779.en. Retrieved 19 November 2021.
  2. ^ a b c C FC Lt. Fraser (1924). A Survey of the Odonate (Dragonfly) Fauna of Western India and Descriptions of Thirty New Species (PDF). pp. 480–481.
  3. ^ Martin Schorr; Dennis Paulson. "World Odonata List". University of Puget Sound. Retrieved 12 Oct 2018.
  4. ^ a b c "Dysphaea ethela Fraser, 1924". India Biodiversity Portal. Retrieved 2017-03-07.
  5. ^ a b "Dysphaea ethela Fraser, 1924". Odonata of India, v. 1.00. Indian Foundation for Butterflies. Retrieved 2017-03-07.
  6. ^ Hämäläinen, Matti (2015). "Catalogue of individuals commemorated in the scientific names of extant dragonflies, including lists of all available eponymous species-group and genus-group names" (PDF). International Dragonfly Fund (IDF) - Report. 80: 1–168. ISSN 1435-3393. Retrieved 18 September 2020.
  7. ^ a b Subramanian, K. A. (2005). Dragonflies and Damselflies of Peninsular India - A Field Guide.
  8. ^ 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. 82–83. ISBN 9788181714954.
  9. ^ a b c C FC Lt. Fraser (1934). The Fauna of British India, including Ceylon and Burma, Odonata Vol. II. Red Lion Court, Fleet Street, London: Taylor and Francis. pp. 92-94.

External links[]

Data related to Dysphaea ethela at Wikispecies

Media related to Dysphaea ethela at Wikimedia Commons

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