Agriocnemis pygmaea[3] (pygmy wisp)[5] is a species of damselfly in the family Coenagrionidae.[4] It is also known as wandering midget, pygmy dartlet or wandering wisp. It is well distributed across Asia and parts of Australia.[1][6]

Pygmy wisp
Male
Female
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Arthropoda
Clade: Pancrustacea
Class: Insecta
Order: Odonata
Suborder: Zygoptera
Family: Coenagrionidae
Genus: Agriocnemis
Species:
A. pygmaea
Binomial name
Agriocnemis pygmaea
(Rambur, 1842)[2]
Synonyms[3]
  • Agrion pygmaeum Rambur, 1842
  • Agriocnemis australis Selys, 1877
  • Agriocnemis velaris Selys, 1882[4]
  • Agrion kagiensis Matsumura, 1911
  • Agriocnemis hyacinthus Tillyard, 1913
  • Agriocnemis corbeti Kumar & Prasad, 1978

Description and habitat

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Agriocnemis pygmaea is a small damselfly with black capped green eyes, black thorax with apple green stripes on lateral sides. Segments 1 to 7 of its abdomen is black on dorsum and pale green on ventral half. The remaining segments are orange-red. Very old males may get pruinosed on the dorsum of the head and the thorax with snowy white, making all the markings beneath being quite obscured. Female is more robust and exhibits several color morphs. The green color of the male is replaced by red in the females in the red forms. In androchrome forms, the female has same green colors as in the male.[7] Female colour variation is depended on ontogenic colour change associated with sexual development too.[8]

Agriocnemis pygmaea breeds in marshes and ponds.[7][9][10][11]

Etymology

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The genus name Agriocnemis is derived from two Greek words: agrion or ἄγριος, meaning wild, and cnemis or κνημίς, meaning legging. Agrion was the name given in 1775 by Johan Fabricius for all damselflies. cnemis is commonly used for many damselflies in the family Coenagrionidae.[12]

The species name pygmaea is from the Greek word for pygmy. In 1842, Jules Pierre Rambur, writing in Latin, started his description of this damselfly: Minimum obscure viridi aenum - very small dark green copper.[2][12]

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male

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female

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See also

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References

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  1. 1 2 Subramanian, K.A. (2020). "Agriocnemis pygmaea". IUCN Red List of Threatened Species. 2020 e.T167280A83374189. doi:10.2305/IUCN.UK.2020-1.RLTS.T167280A83374189.en. Retrieved 20 November 2021.
  2. 1 2 Rambur, Jules (1842). Histoire naturelle des insectes. Névroptères (in French). Paris: Librairie Encyclopédique de Roret. pp. 534 [278] via Gallica.
  3. 1 2 Paulson, D.; Schorr, M.; Abbott, J.; Bota-Sierra, C.; Deliry, C.; Dijkstra, K.-D.; Lozano, F. "World Odonata List". OdonataCentral. University of Alabama. Retrieved 3 April 2026.
  4. 1 2 "Species Agriocnemis pygmaea (Rambur, 1842)". Australian Faunal Directory. Australian Biological Resources Study. 2012. Retrieved 6 April 2017.
  5. Theischinger, Günther; Hawking, John (2006). The Complete Field Guide to Dragonflies of Australia. Collingwood, Victoria, Australia: CSIRO Publishing. p. 102. ISBN 978-0-64309-073-6.
  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. 142–143. ISBN 978-81-8171-495-4.
  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. 398-401.
  8. Joshi, Shantanu; Agashe, Deepa (2020). "Ontogenic colour change, survival, and mating in the damselfly Agriocnemis pygmaea Rambur (Insecta: Odonata)". Ecological Entomology. 45 (5): 1015–1024. Bibcode:2020EcoEn..45.1015J. doi:10.1111/een.12879. Retrieved 1 May 2020.
  9. C FC Lt. Fraser (1924). A Survey of the Odonate (Dragonfly) Fauna of Western India and Descriptions of Thirty New Species. p. 490. doi:10.26515/rzsi/v26/i5/1924/162660.
  10. Subramanian, K. A. (2005). Dragonflies and Damselflies of Peninsular India - A Field Guide.
  11. "Agriocnemis pygmaea Rambur, 1842". India Biodiversity Portal. Retrieved 2017-02-26.
  12. 1 2 Endersby, Ian; Fliedner, Heinrich (2015). The Naming of Australia's Dragonflies. Eltham, Victoria, Australia: Busybird Publishing. ISBN 978-1-925260-62-5.