Nevada Tiger Moth

Grammia nevadensis · Order: Lepidoptera · Family: Erebidae

No source yet on danger. We have no source yet on whether it bites, stings or damages anything.
Nevada Tiger Moth
Photo: Robert Webster, CC BY-SA

The Nevada tiger moth has forewings 15 to 18 mm long (0.59 to 0.71 in). It lives in deserts, juniper woodlands, open sagebrush ranges, and open forests. Its range includes the Pacific Northwest, the Inter-mountain region, the Rocky Mountains, and parts of Canada such as Alberta, southern Saskatchewan and Manitoba.

Source: Wikipedia

Size

Forewing length is 15 to 18 mm (0.59 to 0.71 in).

Source: Wikipedia

Where it lives

Found in deserts, juniper woodlands, open sagebrush ranges, and open forests.

Source: Wikipedia

What it eats

Larvae feed on herbaceous plants such as Lupinus species and Viola beckwithii.

Source: Wikipedia

Where it comes from

Also occurs in Canadian provinces Alberta, southern Saskatchewan and Manitoba.

Source: Wikipedia

Where it is found in the US

Recorded in 14 of 51 states and DC. Most records: Utah, Wyoming, Colorado, Arizona, California, New Mexico, Washington, Montana.

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 plants do the larvae eat?

The caterpillars feed on herbaceous plants, especially Lupinus species and Viola beckwithii.

Source: Wikipedia

Same family (Erebidae)

Sources

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

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.