Stream Bluet

Enallagma exsulans · Order: Odonata · Family: Coenagrionidae

No source yet on danger. We have no source yet on whether it bites, stings or damages anything.
Stream Bluet
Photo: Sam Kieschnick, CC BY

The stream bluet is a damselfly about 29 to 37 mm long that lives near moving water such as small to medium rivers. Both males and females have a blue tip on the abdomen, a trait that is uncommon among damselflies. Adults are most easily seen in summer and they look similar to turquoise bluets.

Source: Wikipedia

How to recognize it

Males usually have a blue tip on the abdomen. Females of this species also have a blue abdominal tip, which is less common.

Source: Wikipedia

Size

The insect measures about 29 to 37 mm in length.

Source: Wikipedia

Where it lives

It prefers moving water and is found along small to medium-sized rivers.

Source: Wikipedia

Lookalikes

It looks similar to the turquoise bluet.

Source: Wikipedia

Where it is found in the US

Recorded in 39 of 51 states and DC. Most records: Ohio, Michigan, Texas, Virginia, Illinois, Indiana, New York, Maryland.

Darker = more records. Counts are museum and citizen-science records, not population size.

Source: GBIF

Status: native in North America; native in Canada; native in United States. Source: iNaturalist

Months it is reported in the US

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Source: GBIF

More photos

Stream Bluet photo 3
Photo: cwwood, CC BY-SA
Stream Bluet photo 4
Photo: psweet, CC BY-SA
Stream Bluet photo 5
Photo: unknown, CC0
Stream Bluet photo 6
Photo: unknown, CC0

Questions people ask

When can I see stream bluets?

They are most active in the summer months.

Source: Wikipedia

Where do stream bluets live?

They are found along small to medium rivers and other moving waters.

Source: Wikipedia

How can I tell a stream bluet from other bluets?

Both sexes have a blue tip on the abdomen, and they resemble turquoise bluets.

Source: Wikipedia

Same family (Coenagrionidae)

Sources

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

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

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

How this page works

This is one bug's fact sheet. The colored box at the top says whether it is dangerous. Sections below cover how to recognize it, whether it is a pest, and how to deal with it. The US map shows which states have records; tap a state to see other bugs there.

Every fact on Bug FAQ comes from a named source (university extension sites, government agencies, GBIF, iNaturalist, Wikipedia). The source is linked next to each section. If we have no source for something, we leave it out.