Pacific Forktail

Ischnura cervula · Order: Odonata · Family: Coenagrionidae

No source yet on danger. We have no source yet on whether it bites, stings or damages anything.
Pacific Forktail
Photo: Tser, CC BY

Females of Pacific Forktail damselflies can look like males or have a distinct coloration. They live in freshwater areas such as springs, wetlands, and slow-moving waters with vegetation. Their range covers western North America from southern British Columbia to Arizona and east to Alberta.

Source: Wikipedia

How to recognize it

Females may be andromorphic, mimicking male colors, or heteromorphic, looking different from males.

Source: Wikipedia

How to get rid of it

Drought, water-depth changes, and altered water chemistry from climate change can also impact their survival.

Source: Wikipedia

Where it lives

Long-term records in California show changes in their distribution over time.

Source: Wikipedia

What it eats

Research in Banff National Park has examined their breeding and population dynamics in freshwater ecosystems.

Source: Wikipedia

Where it comes from

The species is native to western North America, from southern British Columbia south to Arizona and east to Alberta.

Source: Wikipedia

Lookalikes

A related species, I. gemina, has non-territorial males that guard females during mating, influenced by habitat structure.

Source: Wikipedia

Where it is found in the US

Recorded in 15 of 51 states and DC. Most records: California, Oregon, Washington, Utah, Arizona, Nevada, Montana, Idaho.

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

Same family (Coenagrionidae)

Sources

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

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.