Onychothemis testacea
Male
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Odonata
Infraorder: Anisoptera
Family: Libellulidae
Genus: Onychothemis
Species:
O. testacea
Binomial name
Onychothemis testacea
Laidlaw, 1902

Onychothemis testacea,[2] the stellate river hawk,[3] or riverhawker,[4] is a species of dragonfly in the family Libellulidae. It is widespread in many Asian countries.[1][5]

Description

It is a medium sized dragonfly with bottle-green eyes. Its thorax is dark metallic-blue, marked with citron-yellow. There is a narrow mid-dorsal carina, a humeral spot and a narrow stripe on mesepimeron. Abdomen is black, marked with citron-yellow. Segment 1 has a triangular spot on mid-dorsum. Segment 2 has a small diamond-shaped spot on mid-dorsum. Segment 3 has its base dorsally and sub-dorsally narrow yellow and a stellate spot on mid-dorsum. Segments 4 to 9 are similar to 3; but the lateral spots much smaller. Segment 10 is entirely black. Anal appendages are black. Female is similar to the male.[6]

Habitat

It breeds in streams in forest or at its margins. This is a very fast flying dragonfly of forested streams. Males usually perch on dry twigs and other similar vantage points over streams and aggressively chase other dragonflies entering their territory.[6][7][3][4]

See also

References

  1. 1 2 Dow, R.A. (2009). "Onychothemis testacea". IUCN Red List of Threatened Species. 2009: e.T163664A5632305. doi:10.2305/IUCN.UK.2009-2.RLTS.T163664A5632305.en. Retrieved 19 November 2021.
  2. ↑ Paulson, D.; Schorr, M.; Abbott, J.; Bota-Sierra, C.; Deliry, C.; Dijkstra, K.-D.; Lozano, F. (2023). "World Odonata List". OdonataCentral, University of Alabama. Retrieved 14 Mar 2023.
  3. 1 2 "Onychothemis testacea Laidlaw, 1902". India Biodiversity Portal. Retrieved 2017-02-15.
  4. 1 2 "Onychothemis testacea Laidlaw, 1902". Odonata of India, v. 1.00. Indian Foundation for Butterflies. Retrieved 2017-02-15.
  5. ↑ 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. 346–347. ISBN 9788181714954.
  6. 1 2 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. 404-406.
  7. ↑ C FC Lt. Fraser (1924). A Survey of the Odonate (Dragonfly) Fauna of Western India and Descriptions of Thirty New Species (PDF). p. 442.


This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.