Thelma's Agonopterix Moth

Agonopterix thelmae · Order: Lepidoptera · Family: Depressariidae

Also called: Thelma's Agonopterix

No source yet on danger. We have no source yet on whether it bites, stings or damages anything.
Thelma's Agonopterix Moth
Photo: Dave, CC BY

The Thelma's Agonopterix moth has a wingspan of about 21 mm.

Source: Wikipedia

Size

The wingspan is roughly 21 mm.

Source: Wikipedia

Where it comes from

It lives in the eastern United States and southern Ontario.

Source: Wikipedia

Where it is found in the US

Recorded in 25 of 51 states and DC. Most records: New York, Pennsylvania, North Carolina, Ohio, Massachusetts, Vermont, Maryland, Michigan.

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

Source: GBIF

Status: native in North America; native in Canada. Source: iNaturalist

Months it is reported in the US

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Source: GBIF

More photos

Thelma's Agonopterix Moth photo 2
Photo: Zeke Blankenship, CC BY
Thelma's Agonopterix Moth photo 3
Photo: Ryan F. Mandelbaum, CC BY
Thelma's Agonopterix Moth photo 4
Photo: pachips, CC BY
Thelma's Agonopterix Moth photo 5
Photo: geosesarma, CC BY

Same family (Depressariidae)

Goldenrod Leaffolder MothGoldenrod Leaffolder MothAgonopterix pulvipennellaDotted Leaftier MothDotted Leaftier MothPsilocorsis reflexellaSchlaeger's Fruitworm MothSchlaeger's Fruitworm MothAntaeotricha schlaegeriBog Bibarrambla MothBog Bibarrambla MothBibarrambla allenellaPurple Carrot-seed MothPurple Carrot-seed MothDepressaria depressanaPoison hemlock mothPoison hemlock mothAgonopterix alstroemeriana

Sources

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

Look it up elsewhere: GBIF · iNaturalist · BugGuide · 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.