Autumnal Moth

Epirrita autumnata · Order: Lepidoptera · Family: Geometridae

No source yet on danger. We have no source yet on whether it bites, stings or damages anything.
Autumnal Moth
Photo: Alexandria 'Alex' Wenninger, CC BY

The Autumnal Moth flies in September and October. Its caterpillars eat many kinds of trees and shrubs. It is found across the Palearctic region and the Near East.

Source: Wikipedia

Life cycle

The species overwinters as an egg.

Source: Wikipedia

When you see it

Adults are on the wing in September and October.

Source: Wikipedia

Where it comes from

Its range includes the Palearctic region and the Near East.

Source: Wikipedia

Where it is found in the US

Recorded in 23 of 51 states and DC. Most records: Vermont, Washington, Massachusetts, Alaska, Oregon, Maine, New Hampshire, 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

Questions people ask

When are Autumnal Moths active?

Adults fly in September and October.

Source: Wikipedia

What do the caterpillars eat?

They feed on many different trees and shrubs.

Source: Wikipedia

Where can I find Autumnal Moths?

They are found across the Palearctic region and the Near East.

Source: Wikipedia

How can I tell this moth apart from similar species?

Identification usually requires examining the genitalia because it looks like several other moths.

Source: Wikipedia

Same family (Geometridae)

Sources

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

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.