Nychogomphus striatus[2] is a species of dragonfly in the family Gomphidae. It is endemic to the streams of Western Ghats of India. Reports from Nepal require further studies.[3]

Nychogomphus striatus
From Konni, Kerala
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Odonata
Infraorder: Anisoptera
Family: Gomphidae
Genus: Nychogomphus
Species:
N. striatus
Binomial name
Nychogomphus striatus
(Fraser, 1924)
Synonyms

Onychogomphus striatus Fraser, 1924

Taxonomy

edit

Nychogomphus was established as subgenus of Onychogomphus by Carle (1986) with N. geometricus as the type based on the shape of the male cerci and the secondary genitalia. Chao (1990), in his revision of Chinese gomphids elevated this taxon to genus level and transferred Onychogomphus duaricus and O. striatus to Nychogomphus.[4][5]

Description and habitat

edit

It is a medium-sized dragonfly with bottle-green eyes. Its thorax is black on dorsum, marked with yellow. There is a mesothoracic collar, oblique antehumeral stripes joined to the mesothoracic collar, and complete humeral stripes. Laterally yellow, with two black lines mapping out the sutures. The humeral stripes tapering to a point below, and black lines on lateral sutures rather thicker. Segment 1 of the abdomen is black, with a large lateral yellow spot. Segment 2 has a narrow basal black ring and broad sub-basal black stripes. Segments 3 to 6 have yellow basal rings and median dorsal spots. Segment 7 has its basal half yellow. Segment 8 and 9 are black, with a large yellow spot on each side. Segment 10 is entirely black. Superior anal appendages are yellow, the inferior is dark. Superiors have a fine black line along the upper surface of the apical third.[6]

No information available on the habitat or ecology of this species, but it is likely to breed in rocky forest streams as other species in this genus.[6]

See also

edit

References

edit
  1. ^ Dow, R.A. (2009). "Nychogomphus striatus". IUCN Red List of Threatened Species. 2009: e.T163644A5628959. doi:10.2305/IUCN.UK.2009-2.RLTS.T163644A5628959.en. Retrieved 20 November 2021.
  2. ^ "World Odonata List". Slater Museum of Natural History. Retrieved 2018-10-02.
  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. p. 249. ISBN 9788181714954.
  4. ^ Chao, H.F. (1990) The Gomphid Dragonflies of China (Odonata: Gomphidae). Science and Technology Publishing House Fuzhou, 486 pp. [Chinese, with English summary]
  5. ^ Kalkman, V. J.; Babu, R.; Bedjanič, M.; Conniff, K.; Gyeltshenf, T.; Khan, M. K.; Subramanian, K. A.; Zia, A.; Orr, A. G. (2020-09-08). "Checklist of the dragonflies and damselflies (Insecta: Odonata) of Bangladesh, Bhutan, India, Nepal, Pakistan and Sri Lanka". Zootaxa. 4849 (1). Magnolia Press, Auckland, New Zealand: 001–084. doi:10.11646/zootaxa.4849.1.1. hdl:10072/398768. ISBN 978-1-77688-047-8. ISSN 1175-5334. PMID 33056748.
  6. ^ a b 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. 249-250.