Red-eyed Damselfly

Erythromma najas · Order: Odonata · Family: Coenagrionidae

Also called: Large Redeye

No source yet on danger. We have no source yet on whether it bites, stings or damages anything.
Red-eyed Damselfly
Photo: purperlibel, CC BY-SA

The red-eyed damselfly is a small insect about 35 mm long and is mostly black with shiny blue markings. Males have large, widely spaced deep-red eyes that set them apart from similar blue-tailed damselflies. They often perch on floating leaves or algae mats, and belong to the Coenagrionidae family.

Source: Wikipedia

How to recognize it

They are mainly black with iridescent blue patches. Males have large, spaced deep-red eyes, unlike the blue-tailed Ischnura species.

Source: Wikipedia

Size

They measure about 35 mm (1.4 in) in length.

Source: Wikipedia

Where it lives

Males spend much time perched on leaves of water lilies or on mats of algae.

Source: Wikipedia

Where it comes from

They are members of the damselfly family Coenagrionidae.

Source: Wikipedia

More photos

Red-eyed Damselfly photo 3
Photo: rober025, CC BY

Same family (Coenagrionidae)

Eastern ForktailEastern ForktailIschnura verticalisBlue-tailed DamselflyBlue-tailed DamselflyIschnura elegansFragile ForktailFragile ForktailIschnura positaAzure DamselflyAzure DamselflyCoenagrion puellaFamiliar BluetFamiliar BluetEnallagma civileCommon Blue DamselflyCommon Blue DamselflyEnallagma cyathigerum

Sources

  • Wikipedia: https://en.wikipedia.org/wiki/Erythromma_najas

Look it up elsewhere: GBIF · iNaturalist · BugGuide · Wikipedia

Text written 2026-10-22 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-22.

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