OdonataCoenagrionidae – Narrow-winged Damselflies2 data sources

Variable Dancer

Argia fumipennis

This record describes Argia fumipennis (species). Recorded family: Coenagrionidae. Recorded order: Odonata.

Identification and Appearance

Variable Dancer - Argia fumipennis
Contributed by Stephen_WV; Additional contributions by john and jane balaban , jforbes , Ron M.

As the name suggests, this is a variable species. The variation has led to the describing of three subspecies. The Violet Dancer ( A. f. violacea ) to the north has clear wings, the Smoky-winged Dancer ( A. f. fumipennis ) of the southeast has brownish wings, and the Black Dancer ( A. f. atra ) of Florida has entirely black wings. Dr John Abbott of Odonata Central states Subspecies are interesting as they are often used differently within different taxa. Within the Odonata, they essentially are not used. You will not find them in the checklists on OdonataCentral for example because we (the official names committee for North American Odonata) decided to do away with the few that we had. I'm not arguing against the use of subspecies in general, just that within Odonata, we decided they weren't that helpful/useful. If there is an exception, it is the A. fumipennis complex where there are common names established (though not official) for the three recognized subspecies. In this case they were described to distinguish the geographic variations within the species, and again, they can be useful in that regards. But the subspecies definitely do interbreed where they meet and there are intergrades. At OdonataCentral we just decided it was easiest to call them all A. fumipennis at least when it comes to labeling pictures on the web and such. The images here on BugGuide are sorted as best as possible given these conditions. The subspecies are interesting, but absolute certainty on identification to subspecies is not possible nor critically important.

Wikipedia reference for Argia fumipennis: http://en.wikipedia.org/wiki/Variable_dancer.

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Odonata (Dragonflies and Damselflies)
Suborder
Zygoptera
Family
Coenagrionidae (Narrow-winged Damselflies)
Genus
Argia (Dancers)

Imported taxonomy record. Source availability varies; see the source references and editorial policy below.

Habitat and Range

Habitat

Well-vegetated ponds and streams.

Geographic Range

United States, and just edging into Canada. Missing from the northwest quarter of the United States.

Seasonal Activity

Spring and summer.

Diet and Behavior

Diet: Tiny flying insects.

About Dragonflies and Damselflies: the wider group

Order-level background for Odonata, the group containing Argia fumipennis. Species-specific details appear above.

Group overview

Odonata includes ~6,000 described species of dragonflies and damselflies. Dragonflies are among the fastest flying insects, reaching 36 mph (58 km/h). They can fly in any direction including backward, and hover in place - each wing operates independently.

Ecological role of the group

Dragonflies predate dinosaurs by nearly 100 million years - fossils date to 325 million years ago. The largest dragonfly ancestor, Meganeuropsis permiana (285 mya), had a 75cm wingspan, enabled by atmospheric oxygen levels of 31-35% compared to today's 21%. Dragonflies have a 95% hunting success rate - the highest of any predator.

Economic and practical significance of the group

Dragonflies are voracious predators that consume hundreds of mosquitoes daily, providing natural pest control worth millions in reduced mosquito-borne disease risk. A single dragonfly can eat 30 to hundreds of mosquitoes per day.

Recorded sources for this group: Natural History Museum London, Britannica, fossil record research. Imported estimates may describe particular regions or reporting periods.

Explore Odonata families and species →

Frequently Asked Questions About Variable Dancer

What is Variable Dancer?

Variable Dancer (Argia fumipennis) is a species in the family Coenagrionidae, within the order Odonata.

How big is Variable Dancer?

29-35 mm.

Where is Variable Dancer found?
FeatureDetails
HabitatWell-vegetated ponds and streams.
RangeUnited States, and just edging into Canada. Missing from the northwest quarter of the United States.
What does Variable Dancer eat?

The diet of the Variable Dancer includes Tiny flying insects..

When is Variable Dancer active?

Variable Dancer: seasonal activity - Spring and summer..

How we use and review source data. Source count does not imply independent verification.

Photo credits: Contributed by Stephen_WV; Additional contributions by john and jane balaban , jforbes , Ron M.. Contributors retain copyright over their individual contributions.