Article · Wikipedia archive · Last revised Jun 18, 2026

Triacanthagyna

Triacanthagyna is a genus of dragonflies in the family Aeshnidae from the Americas. The species have large eyes and broad wings. The females have three prominent spines under the last abdominal segment which gives the genus its name. They are commonly known as three-spined darners.

Last revised
Jun 18, 2026
Read time
≈ 1 min
Length
170 w
Citations
6
Source
Triacanthagyna
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Arthropoda
Clade: Pancrustacea
Class: Insecta
Order: Odonata
Infraorder: Anisoptera
Family: Aeshnidae
Genus: Triacanthagyna
Selys, 1883

Triacanthagyna is a genus of dragonflies in the family Aeshnidae from the Americas. The species have large eyes and broad wings. The females have three prominent spines under the last abdominal segment which gives the genus its name. They are commonly known as three-spined darners.1

The genus contains the following species:2

  • Triacanthagyna caribbea Williamson, 1923 - Caribbean Darner3
  • Triacanthagyna dentata (Geijskes, 1943)
  • Triacanthagyna ditzleri Williamson, 1923
  • Triacanthagyna nympha (Navás, 1933)
  • Triacanthagyna obscuripennis (Blanchard, 1847)
  • Triacanthagyna satyrus (Martin, 1909)
  • Triacanthagyna septima (Selys in Sagra, 1857) - Pale-green Darner13
  • Triacanthagyna trifida (Rambur, 1842) - Phantom Darner3
  • Triacanthagyna williamsoni von Ellenrieder & Garrison, 2003
References

References

  1. Paulson, Dennis R. (2009). Dragonflies and Damselflies of the West. Princeton University Press. ISBN 978-0-691-12281-6.
  2. Paulson, D.; Schorr, M.; Abbott, J.; Bota-Sierra, C.; Deliry, C.; Dijkstra, K.-D.; Lozano, F. "World Odonata List". OdonataCentral. University of Alabama.
  3. "North American Odonata". University of Puget Sound. 2009. Retrieved 5 August 2010.