Bug FAQLocust Digitate Leafminer Moth
Parectopa robiniella · Order: Lepidoptera · Family: Gracillariidae
Also called: Locust Digitate Leafminer
Source: Wikipedia
The adult moth is tiny, with a wingspan of about five millimetres. It can produce two to three generations each year in Hungary.
Source: Wikipedia
Size
The wingspan is roughly five millimetres.
Source: Wikipedia
What it eats
The caterpillars feed on Robinia species such as black locust. They create mines inside the leaves of their host plants.
Source: Wikipedia
Where it comes from
It originates from North America.
Source: Wikipedia
Where it is found in the US
Recorded in 36 of 51 states and DC. Most records: Maryland, Virginia, Massachusetts, Pennsylvania, New York, New Jersey, North Carolina, Michigan.
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
How big is the locust digitate leafminer moth?
The adult’s wingspan is about five millimetres.
Source: Wikipedia
What plants does it damage?
Its larvae feed on Robinia trees, mining the leaves of species like black locust.
Source: Wikipedia
Same family (Gracillariidae)
Sources
- Wikipedia: https://en.wikipedia.org/wiki/Parectopa_robiniella
Look it up elsewhere: GBIF · iNaturalist · BugGuide · Wikipedia
Text written 2026-10-22 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-22.