Pygarctia flavidorsalis

Pygarctia flavidorsalis · Order: Lepidoptera · Family: Erebidae

No source yet on danger. We have no source yet on whether it bites, stings or damages anything.
Pygarctia flavidorsalis
Photo: Judy Gallagher, CC BY-SA

Males have a wingspan of about 30 mm and females about 32 mm. The wings and thorax are white, while the head, abdomen and femora are orange. It occurs in Arizona and Texas, with a record from Oklahoma, and adults have been seen flying in May, July and October.

Source: Wikipedia

How to recognize it

The wings and thorax are white, and the head, abdomen and femora are orange.

Source: Wikipedia

Size

Males have a wingspan of about 30 mm and females about 32 mm.

Source: Wikipedia

Where it lives

It lives in Arizona and Texas and has also been recorded in Oklahoma.

Source: Wikipedia

Where it comes from

It is native to the United States, specifically Arizona and Texas, with an additional record from Oklahoma.

Source: Wikipedia

Where it is found in the US

Recorded in 3 of 51 states and DC. Most records: Texas, Oklahoma, Arizona.

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

Source: GBIF

Months it is reported in the US

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Source: GBIF

More photos

Questions people ask

How large is Pygarctia flavidorsalis?

Males have a wingspan of about 30 mm and females about 32 mm.

Source: Wikipedia

What colors does this moth have?

Its wings and thorax are white, while the head, abdomen and femora are orange.

Source: Wikipedia

Where can I find Pygarctia flavidorsalis?

It is found in Arizona and Texas, with a record from Oklahoma.

Source: Wikipedia

Same family (Erebidae)

Sources

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

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.