Larval feeding type: leaf-miner; larva yellow; linear full-depth mine, often much contorted, central frass line one-third to half of the width, often on saplings and often many mines in a single leaf.
Larval substrate: Betula populifolia* (Gray Birch), B. alleghaniensis* (Yellow Birch), B. papyrifera
Comment: Can be confused with S. corylifoliella, but the mine of that species is not usually as contorted and mines are usually more isolated, often just one per leaf.
Status in MA (automated assessment): Fairly widespread, uncommon
Status in N. America: Holarctic
MA Endangered Species Act status: None
First Year Reported: 2014
Last Year Reported: 2022
Distribution by County: Berkshire, Franklin, Worcester, Norfolk, Plymouth
Number of Records: 6