Bug FAQOrange-humped Mapleworm
Symmerista leucitys · Order: Lepidoptera · Family: Notodontidae
Also called: Orangehumped Mapleworm, Orange-humped Mapleworm Moth
Source: Wikipedia
The orange-humped mapleworm moth is called Symmerista leucitys. Adults have a wingspan of about 35 mm. It lives in the eastern part of North America, from southern Canada through the northern United States east of the Great Plains.
Source: Wikipedia
How to recognize it
Symmerista leucitys is the scientific name for the orange-humped mapleworm moth.
Source: Wikipedia
Size
The moth’s wingspan measures roughly 35 mm.
Source: Wikipedia
Where it lives
It is found across southern Canada and the northern United States east of the Great Plains.
Source: Wikipedia
What it eats
The caterpillars feed on maple (Acer) species.
Source: Wikipedia
Life cycle
There is one generation each year.
Source: Wikipedia
Where it comes from
Its native range includes the same eastern North American region described for its habitat.
Source: Wikipedia
Where it is found in the US
Recorded in 17 of 51 states and DC. Most records: Michigan, Vermont, Massachusetts, Ohio, Maine, Pennsylvania, North Carolina, New York.
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 is the orange-humped mapleworm found?
It occurs in southern Canada and the northern United States east of the Great Plains.
Source: Wikipedia
What is the scientific name of the orange-humped mapleworm?
Its scientific name is Symmerista leucitys.
Source: Wikipedia
Same family (Notodontidae)
White-dotted ProminentNadata gibbosa
Buff-tipPhalera bucephalaDamages trees, gardens or crops
Common Gluphisia MothGluphisia septentrionis
Pine Processionary-mothThaumetopoea pityocampaDamages trees, gardens or crops
Walnut Caterpillar MothDatana integerrimaDamages trees, gardens or crops
Saddled ProminentHeterocampa guttivittaDamages trees, gardens or cropsSources
- Wikipedia: https://en.wikipedia.org/wiki/Symmerista_leucitys
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.