Bug FAQEgira hiemalis
Egira hiemalis · Order: Lepidoptera · Family: Noctuidae
Egira hiemalis is a moth in the Noctuidae family. Its wingspan is about 36 mm. It lives in western North America from British Columbia down to California and flies in winter through early spring in the Pacific Northwest and California, later in spring in British Columbia.
Source: Wikipedia
How to recognize it
Egira hiemalis belongs to the moth family Noctuidae.
Source: Wikipedia
Size
The adult’s wingspan measures roughly 36 mm.
Source: Wikipedia
What it eats
Caterpillars feed on a variety of conifers and shrubs such as Douglas-fir, western hemlock, grand fir, western larch, bitterbrush, hazelnut, and ash.
Source: Wikipedia
Life cycle
Adults are on the wing during winter to early spring in the Pacific Northwest and California, and later in spring in British Columbia.
Source: Wikipedia
Where it comes from
Its native range is western North America, spanning British Columbia to California.
Source: Wikipedia
Where it is found in the US
Recorded in 8 of 51 states and DC. Most records: California, Oregon, Washington, Idaho, Colorado, Montana, Utah, Wyoming.
Darker = more records. Counts are museum and citizen-science records, not population size.
Source: GBIF
Status: native in North America; native in United States; native in Canada. Source: iNaturalist
Months it is reported in the US
Source: GBIF
More photos
Questions people ask
When are Egira hiemalis moths active?
In the Pacific Northwest and California they fly from winter into early spring, while in British Columbia they appear later in spring.
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/Egira_hiemalis
Look it up elsewhere: GBIF · iNaturalist · BugGuide · ITIS · Wikipedia
Text written 2026-10-24 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-24.