Merogomphus longistigma

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Merogomphus longistigma
Merogomphus longistigma from Wayanad.jpg
Male
Merogomphus longistigma.jpg
Female
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Odonata
Infraorder: Anisoptera
Family: Gomphidae
Genus: Merogomphus
Species:
M. longistigma
Binomial name
Merogomphus longistigma
(Fraser, 1922)
Synonyms

Indogomphus longistigma Fraser, 1922

Merogomphus longistigma [2] is a species of large dragonfly in the family Gomphidae. It is endemic to the forest streams of Western Ghats of India. [1] [3] [4]

Contents

Description and habitat

It is a large dragonfly with bottle-green eyes. Its thorax is black, marked with bright yellow. Sides are greenish-yellow traversed by two closely parallel black stripes. Abdomen is black, marked with bright yellow. Segment 1 has a broad stripe on dorsum and a large quadrate spot on each side. Segment 2 has an L-shaped spot on each side. Segment 3 has a baso-lateral triangular spot, a latero-ventral stripe tapering from the basal end and a narrow mid-dorsal stripe. Segments 4 to 6 have similar markings, but the lateral stripe is absent and the mid-dorsal stripe is well separated from the basal yellow. Segment 7 has its basal half broadly yellow. Segments 8 t o 10 have only the mid-dorsal carina finely yellow. [5] [6] [7]

It looks similar to Merogomphus tamaracherriensis ; but can be differentiated by the colour of the occiput and abdominal markings, as well as by its smaller size. [5] [8] The occiput greenish yellow here whereas entirely black in M. tamaracherriensis. The anal appendages also differ rather widely from those of M. tamaracherriensis. The anal appendages of M. longistigma are decidedly depressed for the distal half and the apices turn sharply upwards. In M. tamaracherriensis, the base slopes sharply away on the inner side so that the fenestra is diamond-shaped. [9]

It is commonly found in montane streams at high altitudes. [5]

See also

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References

  1. 1 2 Subramanian, K.A. (2011). "Merogomphus longistigma". IUCN Red List of Threatened Species . 2011: e.T175161A7115624. doi: 10.2305/IUCN.UK.2011-1.RLTS.T175161A7115624.en . Retrieved 20 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. ↑ 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. 235–236. ISBN   9788181714954.
  4. ↑ "Merogomphus longistigma Fraser, 1922". India Biodiversity Portal. Retrieved 2017-02-11.
  5. 1 2 3 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.  311–313.
  6. ↑ P., Rangnekar; R., Naik (2014). "Further additions to the Odonata (Insecta) fauna of Goa, India". Journal of Threatened Taxa. 6 (3): 5585–5589. doi: 10.11609/JoTT.o3641.5585-9 .
  7. ↑ "Merogomphus longistigma Fraser, 1922". Odonata of India, v. 1.00. Indian Foundation for Butterflies. Retrieved 2017-02-11.
  8. ↑ C FC Lt. Fraser (1931). Additions to the Survey of the Odonate (Dragonfly) Fauna of Western India, with Descriptions of Nine New Species (PDF). p. 460.
  9. ↑ F. C., Fraser (1953). "Notes On The Family Gomphidae With Descriptions Of A New Species And The Female Of Another (Order Odonata)". Proc. R. Entomol. Soc. Lond. 22: 191–192.


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