Goldenrod stowaway

Cirrhophanus triangulifer · Order: Lepidoptera · Family: Noctuidae

Also called: Goldenrod Stowaway Moth

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

The goldenrod stowaway has a wingspan of about 30 to 44 mm. Adults are active on the wing in late summer, typically from August through September. They are found on yellow-flowered plants such as goldenrod, Coreopsis and Bidens during the day, and the caterpillars feed on Bidens species.

Source: Wikipedia

Size

The wingspan measures between 30 and 44 mm.

Source: Wikipedia

What it eats

The larvae feed on plants in the genus Bidens, including Bidens bipinnata.

Source: Wikipedia

When you see it

The flight period for adults is August through September.

Source: Wikipedia

Where it comes from

It occurs in the United States from New York down to Florida and west to Texas and Oklahoma, reaching north to Wisconsin. In Canada it has only been recorded in Ontario.

Source: Wikipedia

Where it is found in the US

Recorded in 29 of 51 states and DC. Most records: Ohio, Virginia, North Carolina, Mississippi, Maryland, Illinois, Missouri, Pennsylvania.

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 can I expect to see goldenrod stowaway moths?

Adults are active from August to September.

Source: Wikipedia

What plants do the larvae feed on?

The caterpillars eat Bidens species, such as Bidens bipinnata.

Source: Wikipedia

Where is this moth found in North America?

It lives in the eastern and central United States from New York to Florida and west to Texas and Oklahoma, and has been recorded in Ontario, Canada.

Source: Wikipedia

How big is the goldenrod stowaway?

Its wingspan ranges from 30 to 44 mm.

Source: Wikipedia

Same family (Noctuidae)

Sources

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

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.