Bad-wing Moth

Dyspteris abortivaria · Order: Lepidoptera · Family: Geometridae

Also called: Badwing Moth, The Bad-wing

No source yet on danger. We have no source yet on whether it bites, stings or damages anything.
Bad-wing Moth
Photo: Patrick Hanly, CC BY

Its common name comes from the fact that the forewing is far larger than the hindwing, which often makes spreading the wings difficult. The species was first described by Herrich-Schäffer in 1855. It is found in North America.

Source: Wikipedia

How to recognize it

The moth’s forewing is much larger than its hindwing, so the wings are hard to pull into position for spreading.

Source: Wikipedia

Where it comes from

The species occurs in North America.

Source: Wikipedia

Where it is found in the US

Recorded in 36 of 51 states and DC. Most records: North Carolina, Ohio, Alabama, Tennessee, Pennsylvania, New York, Virginia, Maryland.

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

Source: GBIF

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

Months it is reported in the US

JFMAMJJASOND

Source: GBIF

More photos

Same family (Geometridae)

Sources

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

Look it up elsewhere: GBIF · iNaturalist · BugGuide · ITIS · Wikipedia

Text written 2026-10-23 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-23.

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.