Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada

Species Argia sedula - Blue-ringed Dancer

Damselfly - Argia sedula Spreadwing? - Argia sedula Damsel - Argia sedula Damselfly - Argia sedula Blue-ringed Dancer - Argia sedula - male Coenagrionidae - Argia sedula - female Coenagrionidae - Argia sedula Coenagrionidae - Argia sedula - male
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Odonata (Dragonflies and Damselflies)
Suborder Zygoptera (Damselflies)
Family Coenagrionidae (Narrow-winged Damselflies)
Genus Argia (Dancers)
Species sedula (Blue-ringed Dancer)
Synonyms and other taxonomic changes
Argia sedula (Hagen, 1861)
Explanation of Names
Species name is from Latin sedulus, meaning zealously (Internet searches).
Length 31-36 mm
Male has black abdomen with blue rings. Resembles a bluet, but abdominal segment 2 mostly black, has wide black, forked, shoulder stripe. Thorax of male darkens during tandem oviposition. Some southern populations have slight tinting in wings. Female is brown, rather weakly marked.
southern two-thirds of US, with a small "hump" in the northeast that reaches into southern Ontario and Michigan
more common southward in east
Rivers, streams, lakes, ditches with aquatic vegetation. Perch often on vegetation in shade, unlike most other dancers (1).
March-November (Texas); June-October (Virginia); June-September (Ontario)
Predatory on small insects
Life Cycle
Oviposit in tandem into aquatic vegetation.
Print References
Abbott, pp. 83-85, photo 10d (1)
Dunkle, Damselflies of Florida, p. 89, figs. 66-67 (2)
Lam, p. 49 (3)
Nikula, p. 67 (4)
Internet References
Works Cited
1.Dragonflies and Damselflies of Texas and the South-Central United States
John C. Abbott. 2005. Princeton University Press.
2.Damselflies of Florida, Bermuda, and the Bahamas
Sidney W. Dunkle. 1991. Scientific Publishers.
3.Damselflies of the Northeast
Ed Lam. 2004. Biodiversity Books.
4.Stokes Beginner's Guide to Dragonflies
Donald and Lillian Stokes. 2002. Little, Brown and Company.