Bug FAQDotted Gymnandrosoma Moth
Gymnandrosoma punctidiscanum · Order: Lepidoptera · Family: Tortricidae
Also called: Dotted Ecdytolopha Moth, Dotted Gymnast Moth
Source: Wikipedia
The dotted Gymnandrosoma moth has a wingspan of about 20 mm. It lives across many parts of North America, including numerous U.S. states and Canadian provinces. Adults are active from March through November, most often seen between May and August.
Source: Wikipedia
How to recognize it
Gymnandrosoma punctidiscanum belongs to the Tortricidae family of moths.
Source: Wikipedia
Size
The moth’s wingspan measures roughly 20 mm.
Source: Wikipedia
Where it lives
It is found in North America.
Source: Wikipedia
What it eats
The caterpillars feed on species of the Robinia genus.
Source: Wikipedia
Life cycle
Adults are on the wing from March to November, with most sightings between May and August.
Source: Wikipedia
When you see it
The flight period spans March through November, peaking in the summer months.
Source: Wikipedia
Where it comes from
Recorded locations include many U.S. states such as Alabama, Florida, and New York, as well as Canadian provinces like Ontario and Quebec.
Source: Wikipedia
Where it is found in the US
Recorded in 35 of 51 states and DC. Most records: Massachusetts, Pennsylvania, Alabama, Michigan, North Carolina, Ohio, New Jersey, Maryland.
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
What do the larvae of the dotted Gymnandrosoma moth eat?
They feed on Robinia species.
Source: Wikipedia
When can I see adult dotted Gymnandrosoma moths?
Adults are active from March to November, especially from May to August.
Source: Wikipedia
Same family (Tortricidae)
Oblique-banded Leafroller MothChoristoneura rosaceanaDamages trees, gardens or crops
Garden TortrixClepsis peritanaDamages trees, gardens or crops
Common MarbleSyricoris lacunanaDamages trees, gardens or crops
Red-banded Leafroller MothArgyrotaenia velutinanaDamages trees, gardens or crops
Light Brown Apple MothEpiphyas postvittanaDamages trees, gardens or crops
Filbertworm MothCydia latiferreanaDamages trees, gardens or cropsSources
- Wikipedia: https://en.wikipedia.org/wiki/Gymnandrosoma_punctidiscanum
Look it up elsewhere: GBIF · iNaturalist · BugGuide · Wikipedia
Text written 2026-10-23 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-23.