Lasionycta discolor
Lasionycta discolor · Order: Lepidoptera · Family: Noctuidae
Lasionycta discolor belongs to the moth family Noctuidae. It flies over alpine tundra and is active both during the day and at night. The species is found in Colorado’s Rocky Mountains and on Wyoming’s Beartooth Plateau. Adults are on the wing in late July.
Source: Wikipedia
How to recognize it
Lasionycta discolor is a moth in the Noctuidae family.
Source: Wikipedia
Where it lives
It flies over alpine tundra and is active both day and night.
Source: Wikipedia
When you see it
Adults are on wing in late July.
Source: Wikipedia
Where it comes from
It occurs in Colorado’s Rocky Mountains and Wyoming’s Beartooth Plateau.
Source: Wikipedia
Where it is found in the US
Recorded in 3 of 51 states and DC. Most records: Colorado, Wyoming, Montana.
Darker = more records. Counts are museum and citizen-science records, not population size.
Source: GBIF
Months it is reported in the US
Source: GBIF
More photos

Questions people ask
When are adult Lasionycta discolor moths active?
Adults are on the wing in late July.
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/Lasionycta_discolor
Look it up elsewhere: GBIF · iNaturalist · BugGuide · ITIS · Wikipedia
Text written 2026-10-28 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-28.