Bug FAQSigmoid Dart
Eueretagrotis sigmoides · Order: Lepidoptera · Family: Noctuidae
Also called: Sigmoid Dart Moth
The sigmoid dart is a moth with a wingspan of about 40 mm. It lives in eastern North America, from Ontario west to central Saskatchewan and from Maine down to western Kentucky. Adults are active in June and July.
Source: Wikipedia
How to recognize it
The sigmoid dart belongs to the Noctuidae family of moths.
Source: Wikipedia
Size
Its wingspan measures roughly 40 mm.
Source: Wikipedia
Where it lives
It is found in eastern North America.
Source: Wikipedia
When you see it
Adults are on the wing from June through July.
Source: Wikipedia
Where it is found in the US
Recorded in 18 of 51 states and DC. Most records: Vermont, Minnesota, Michigan, New York, Maine, Massachusetts, Wisconsin, New Hampshire.
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
Source: GBIF
More photos
Questions people ask
Where does the sigmoid dart live?
It lives in eastern North America, from Ontario to central Saskatchewan and from Maine down to western Kentucky.
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/Eueretagrotis_sigmoides
Look it up elsewhere: GBIF · iNaturalist · BugGuide · ITIS · Wikipedia
Text written 2026-10-27 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-27.