Thistle Stem Borer Moth

Papaipema arctivorens · Order: Lepidoptera · Family: Noctuidae

Also called: Northern Burdock Borer Moth, Northern Burdock Borer

No source yet on danger. We have no source yet on whether it bites, stings or damages anything.
Thistle Stem Borer Moth
Photo: iNaturalist user, CC0

The adult moth has a wingspan of about 27 to 39 millimetres. It lives across eastern North America, from Quebec down to northern Georgia and west to Missouri, reaching up into Minnesota and Ontario. The caterpillars eat plants such as burdock, thistles, teasel, and occasionally verbena and mullein species.

Source: Wikipedia

Size

Wingspan ranges from 27 to 39 mm.

Source: Wikipedia

What it eats

Larvae feed on burdock, thistles, teasel, and sometimes verbena and mullein.

Source: Wikipedia

Where it comes from

Native to eastern Canada and the eastern United States, spanning Quebec to northern Georgia and west to Missouri.

Source: Wikipedia

Where it is found in the US

Recorded in 28 of 51 states and DC. Most records: Michigan, Ohio, Wisconsin, Illinois, Minnesota, Connecticut, Pennsylvania, Indiana.

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

JFMAMJJASOND

Source: GBIF

More photos

Same family (Noctuidae)

Sources

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

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.