Thoughtful Apamea

Apamea cogitata · Order: Lepidoptera · Family: Noctuidae

No source yet on danger. We have no source yet on whether it bites, stings or damages anything.
Thoughtful Apamea
Photo: iNaturalist user, CC0

The moth’s wingspan is roughly 40 mm. Adults are on the wing from June to September, varying by region.

Source: Wikipedia

How to recognize it

It was once treated as a subspecies of Apamea dubitans.

Source: Wikipedia

Size

Its wingspan measures about 40 mm.

Source: Wikipedia

Life cycle

There is a single generation each year.

Source: Wikipedia

When you see it

Adults fly between June and September, depending on location.

Source: Wikipedia

Where it comes from

The species is native to North America, spanning Canada and the western United States.

Source: Wikipedia

Lookalikes

It was formerly considered a subspecies of Apamea dubitans.

Source: Wikipedia

Where it is found in the US

Recorded in 18 of 51 states and DC. Most records: Alaska, Montana, Oregon, Wyoming, Washington, Idaho, Colorado, South Dakota.

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

Source: GBIF

Status: native in North America; native in United States; 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 adult Thoughtful Apamea moths active?

Adults are on the wing from June through September, varying by region.

Source: Wikipedia

Same family (Noctuidae)

Sources

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

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.