Golden Stone

Hesperoperla pacifica · Order: Plecoptera · Family: Perlidae

Also called: Golden Stonefly

No source yet on danger. We have no source yet on whether it bites, stings or damages anything.
Golden Stone
Photo: Tom Kennedy, CC BY

The nymph can be recognized by a pale, hourglass-shaped marking on its head. Golden Stone stoneflies are found across North America.

Source: Wikipedia

How to recognize it

Its nymph shows a pale hourglass-shaped mark on the head.

Source: Wikipedia

Where it lives

It lives in North American habitats.

Source: Wikipedia

Where it comes from

Its native range is North America.

Source: Wikipedia

Lookalikes

That hourglass mark distinguishes it from other perlid nymphs.

Source: Wikipedia

Where it is found in the US

Recorded in 13 of 51 states and DC. Most records: Colorado, California, Utah, South Dakota, Oregon, Washington, Wyoming, Nevada.

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

Golden Stone photo 3
Photo: Evan, CC BY
Golden Stone photo 4
Photo: Tom Kennedy, CC BY
Golden Stone photo 5
Photo: Lee Cain, CC BY
Golden Stone photo 6
Photo: unknown, CC0

Questions people ask

How can I identify the nymph of Golden Stone?

Look for a pale, hourglass-shaped spot on the head of the nymph.

Source: Wikipedia

Same family (Perlidae)

Sources

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

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

Text written 2026-10-23 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-23.

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.