Paracercion calamorum

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Paracercion calamorum
Paracercion calamorum (Dusky Lilysquatter) male.jpg
male
Paracercion calamorum (Dusky Lilysquatter) female.jpg
female
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Class:
Insecta
Order:
Odonata
Suborder:
Zygoptera
Family:
Coenagrionidae
Genus:
Paracercion
Species:
P. calamorum
Binomial name
Paracercion calamorum
(Ris, 1916)
Synonyms
  • Agrion calamorusRis, 1916
  • Argiocnemis dyeriFraser, 1919 [2]
  • Argiocnemis gravelyiFraser, 1919
  • Coenagrion violaceaFraser, 1924

Paracercion calamorum, [3] [1] the dusky lilly-squatter, [4] [5] is a species of damselfly in the family Coenagrionidae. It has a range that extends from southern far-eastern Russia to Japan, and to India and Indonesia. The nominate subspecies P. c. calamorum is known from central and eastern China, Korea and Japan. The subspecies P. c. dyeri occurs in southern China, Hong Kong, Taiwan, Indonesia, India, Nepal, and Thailand. [1] [6]

Contents

Description and habitat

It is a medium-sized damselfly with brown-capped yellowish green eyes. Its thorax is black on dorsum without any or very fine azure blue antehumeral stripes, which are very broad in Paracercion malayanum . Lateral sides of thorax are greenish blue with a fine black line on the upper part of each lateral suture. In old males, all these marks are obscured by bluish white pruinescence. Its wings are transparent and pterostigma is yellow, framed with heavy black nervures. Its abdomen is azure blue with broad black dorsal marks up to segment 7. Segment 2 has a distinct broad dorsal spot connected narrowly to a fine apical ring. This mark will help to distinguish it from Pseudagrion species. Segment 10 has a narrow mid-dorsal black streak. Female is dull in colors. Its abdomen is similar to the male. But the lateral ground colour is greenish-yellow and segments 8 and 9 are broadly black on dorsum. Segment 10 is bluish-green. Female also get pruinosed when aged. [2] [7]

It breeds in stagnant and weedy ponds, resting flat on floating grasses and lotus leaves. Eggs are inserted well within the up-curled rim of the lotus leaf or any other floating vegetation. [7] [8] [9] [4] [5]

See also

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References

  1. 1 2 3 Wilson, K. D. P. (2009). "Paracercion calamorum". IUCN Red List of Threatened Species . 2009: e.T164788A5926668. doi: 10.2305/IUCN.UK.2009-2.RLTS.T164788A5926668.en . Retrieved 20 November 2021.
  2. 1 2 Fraser, F. C. (1919). "Descriptions of four new Indian Odonata" (PDF). Records of the Indian Museum. 16: 451–452. doi:10.5962/bhl.part.25933 . Retrieved 16 October 2018.
  3. ↑ Martin Schorr; Dennis Paulson. "World Odonata List". University of Puget Sound . Retrieved 12 Oct 2018.
  4. 1 2 "Paracercion calamorum Ris, 1916". India Biodiversity Portal. Retrieved 2017-03-03.
  5. 1 2 "Paracercion calamorum Ris, 1916". Odonata of India, v. 1.00. Indian Foundation for Butterflies. Retrieved 2017-03-03.
  6. ↑ 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. 167–168. ISBN   9788181714954.
  7. 1 2 C FC Lt. Fraser (1933). The Fauna of British India, including Ceylon and Burma, Odonata Vol. I. Red Lion Court, Fleet Street, London: Taylor and Francis. pp.  413–415.
  8. ↑ C FC Lt. Fraser (1924). A Survey of the Odonate (Dragonfly) Fauna of Western India and Descriptions of Thirty New Species (PDF). p. 498.
  9. ↑ Subramanian, K. A. (2005). Dragonflies and Damselflies of Peninsular India - A Field Guide.

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