Bug FAQEuxoa choris
Euxoa choris · Order: Lepidoptera · Family: Noctuidae
Euxoa choris is a moth with a wingspan of about 41 to 43 mm. Adults fly from June through August and there is one generation each year. It lives across western Canada down to the southwestern United States, including places like Saskatchewan, Alberta, Yukon, New Mexico, Arizona and California.
Source: Wikipedia
Size
The wingspan measures between 41 and 43 mm.
Source: Wikipedia
Where it lives
It is found in North America from southwestern Saskatchewan and central Alberta south to New Mexico, Arizona and California.
Source: Wikipedia
Life cycle
The species produces one generation per year.
Source: Wikipedia
When you see it
Adults are on the wing from June to August.
Source: Wikipedia
Where it comes from
Its range includes parts of Canada and the United States across the western and southwestern regions.
Source: Wikipedia
Where it is found in the US
Recorded in 12 of 51 states and DC. Most records: Colorado, Oregon, Montana, Idaho, Arizona, Utah, Wyoming, Washington.
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
Source: GBIF
Questions people ask
When are adult Euxoa choris moths active?
Adults are active from June through August.
Source: Wikipedia
How many generations does Euxoa choris have each year?
There is one generation per year.
Source: Wikipedia
Same family (Noctuidae)
Ipsilon Dart MothAgrotis ipsilonDamages trees, gardens or crops
Fall Armyworm MothSpodoptera frugiperdaDamages trees, gardens or crops
Army Cutworm MothEuxoa auxiliarisDamages trees, gardens or crops
Large Yellow UnderwingNoctua pronubaDamages trees, gardens or crops
Silver ΥAutographa gamma
American DaggerAcronicta americanaCan irritate skinSources
- Wikipedia: https://en.wikipedia.org/wiki/Euxoa_choris
Look it up elsewhere: GBIF · iNaturalist · BugGuide · ITIS · Wikipedia
Text written 2026-10-26 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-26.