Coptodisca juglandiella

(Chambers, 1874)

Sort #: 87 | P #: 210091 | MPG #: 248
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Larval feeding type: Leaf-miner, pupates in a case made from a leaf cut-out; the mine can be distinguished from C. lucifluella by not having dispersed frass. In C. juglandiella the frass is packed at the start of the mine under a piece of unconsumed parenchyma. The mine usually starts at the midrib.
Larval substrate: Juglans nigra* (Black Walnut), Juglans cinerea* (Butternut)

Comment: The species has been accidentally introduced to Hungary, where it mainly feeds on Black Walnut.

Status in MA (automated assessment): Restricted distribution, rare
Status in N. America: Native
MA Endangered Species Act status: None
First Year Reported: 2020
Last Year Reported: 2024

Distribution by County: Franklin, Worcester, Middlesex
Number of Records: 3