Bug FAQLate Birch Leaf Edgeminer Sawfly
Heterarthrus nemoratus · Order: Hymenoptera · Family: Tenthredinidae
Also called: Birch Disc-miner, Late Birch Leaf Edgeminer
The Late Birch Leaf Edgeminer Sawfly is a sawfly species that occurs in the Palearctic region. Its larvae mine the leaves of birch trees.
Source: Wikipedia
How to recognize it
It belongs to the sawfly group and is found in the Palearctic region.
Source: Wikipedia
Where it lives
It lives on birch trees where it mines the leaves.
Source: Wikipedia
What it eats
Its larvae feed inside birch leaves.
Source: Wikipedia
Where it comes from
It is native to the Palearctic region.
Source: Wikipedia
Where it is found in the US
Recorded in 8 of 51 states and DC. Most records: New Hampshire, Alaska, Maine, New York, Illinois, Vermont, Massachusetts, Missouri.
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
Same family (Tenthredinidae)
Sources
- Wikipedia: https://en.wikipedia.org/wiki/Heterarthrus_nemoratus
Look it up elsewhere: GBIF · iNaturalist · BugGuide · Wikipedia
Text written 2026-10-27 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-27.