Bug FAQMaroonwing Moth
Sideridis maryx · Order: Lepidoptera · Family: Noctuidae
It is a North American species. Its larvae are thought to specialize on bearberry (Arctostaphylos uva-ursi), though the exact food plant is not confirmed.
Source: Wikipedia
How to recognize it
Achille Guenée described the species in 1852.
Source: Wikipedia
Where it lives
The maroonwing moth lives in North America.
Source: Wikipedia
What it eats
Larvae are suspected to feed on the plant bearberry (Arctostaphylos uva-ursi).
Source: Wikipedia
Where it comes from
It is native to North America.
Source: Wikipedia
Where it is found in the US
Recorded in 21 of 51 states and DC. Most records: Michigan, Colorado, Massachusetts, Wyoming, Montana, Oregon, New Jersey, South Dakota.
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
More photos
Questions people ask
What do the larvae of the maroonwing moth eat?
They are thought to be specialists on bearberry (Arctostaphylos uva-ursi).
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/Sideridis_maryx
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.