Dark Grey Fishia Moth

Fishia yosemitae · Order: Lepidoptera · Family: Noctuidae

Also called: Dark Grey Fishia

No source yet on danger. We have no source yet on whether it bites, stings or damages anything.
Dark Grey Fishia Moth
Photo: Doug Macaulay, CC BY

The dark grey fishia moth belongs to the Noctuidae family. It lives in parts of western North America, from central Alberta down to Colorado and across several regions of California and the Intermountain area. Its caterpillars eat a variety of herbaceous plants, especially those in the aster and figwort families and some buckwheat species.

Source: Wikipedia

How to recognize it

Fishia yosemitae is a moth in the Noctuidae family, commonly called the dark grey fishia.

Source: Wikipedia

Where it lives

It also occurs in eastern, central, and southern California and the Intermountain region.

Source: Wikipedia

What it eats

The larvae feed on various herbaceous plants, especially those in the Asteraceae and Scrophulariaceae families and on Eriogonum species.

Source: Wikipedia

Where it comes from

It is also native to parts of California and the Intermountain West.

Source: Wikipedia

Where it is found in the US

Recorded in 11 of 51 states and DC. Most records: Wyoming, Montana, Colorado, Michigan, Oregon, Washington, California, Utah.

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

Questions people ask

What do the caterpillars of this moth eat?

They feed on herbaceous plants, particularly those in the aster and figwort families and on buckwheat (Eriogonum) species.

Source: Wikipedia

Same family (Noctuidae)

Sources

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

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

Text written 2026-10-24 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-24.

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.