Giant Hawaiian Darner

Anax strenuus · Order: Odonata · Family: Aeshnidae

Also called: Giant Hawaiian Dragonfly

No source yet on danger. We have no source yet on whether it bites, stings or damages anything.
Giant Hawaiian Darner
Photo: Forest Starr and Kim Starr, CC BY

The Giant Hawaiian darner has a wingspan of about 127 to 143 mm and can reach up to 152 mm. It lives near streams and wetlands on every Hawaiian island and is especially common at higher elevations. It is one of only two dragonfly species that are endemic to the Hawaiian Islands.

Source: Wikipedia

How to recognize it

The green darner (A. junius) is the only similar-looking Anax in Hawaii and can be told apart by its smaller size and lowland habitat.

Source: Wikipedia

Size

Its wingspan typically measures 127 to 143 mm, with verified individuals up to 152 mm.

Source: Wikipedia

Where it lives

You’ll find it near streams and wetlands across all the islands, preferring higher elevations.

Source: Wikipedia

Where it comes from

The species is endemic to Hawaii, being one of only two native dragonflies there.

Source: Wikipedia

Lookalikes

The only other Anax species in Hawaii is the green darner, which is much smaller and lives mainly in lowland areas.

Source: Wikipedia

Where it is found in the US

Recorded in 1 of 51 states and DC. Most records: Hawaii.

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

Source: GBIF

Status: endemic in United States. Source: iNaturalist

Months it is reported in the US

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Source: GBIF

More photos

Questions people ask

How can I tell the Giant Hawaiian darner apart from other dragonflies?

The only similar Anax species in Hawaii is the green darner, which is considerably smaller and lives in lowland wetlands, whereas the Giant Hawaiian darner is larger and common at higher elevations.

Source: Wikipedia

Same family (Aeshnidae)

Sources

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

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

Text written 2026-10-27 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-27.

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.