Clear and Flat Darts and Allies
Euxoa declarata · Order: Lepidoptera · Family: Noctuidae
Also called: Clear Dart, Clear Dart Moth
The clear dart moth has a wingspan of about 31 to 37 millimetres. Adults fly from midsummer through early autumn, typically July to September. It produces one generation each year.
Source: Wikipedia
How to recognize it
Euxoa declarata belongs to the Noctuidae family of moths.
Source: Wikipedia
Size
Its wingspan ranges between 31 and 37 mm.
Source: Wikipedia
Where it lives
In Canada it occurs in provinces from Ontario to British Columbia and up to the Yukon. In the United States it is found as far east as Minnesota and North Carolina and as far west as Arizona, New Mexico and California. Its western range extends to central Alaska.
Source: Wikipedia
Life cycle
The species has a single generation each year.
Source: Wikipedia
When you see it
Adults are on the wing from July through September.
Source: Wikipedia
Where it comes from
It is native to Canada and the United States, including many provinces and states across the north and west.
Source: Wikipedia
Where it is found in the US
Recorded in 19 of 51 states and DC. Most records: Montana, Michigan, Oregon, Colorado, Idaho, Washington, California, Minnesota.
Darker = more records. Counts are museum and citizen-science records, not population size.
Source: GBIF
Status: native in North America; native in United States. Source: iNaturalist
Months it is reported in the US
Source: GBIF
More photos

Questions people ask
When are clear dart moths active?
Adults are typically seen flying between July and September.
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_declarata
Look it up elsewhere: GBIF · iNaturalist · BugGuide · ITIS · Wikipedia
Text written 2026-10-25 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-25.