Macrosaccus robiniella

(Clemens, 1859)

Sort #: 298 | P #: 330287 | MPG #: 790 | PFG Page #: 40
View on BugGuide | View on iNaturalist | BOLD Link

Larval feeding type: Underside or upperside leaf-mine, pupates in the mine. The mine is very white.
Larval substrate: Robinia pseudoacacia* (Black Locust)
Phenology: Adult: 6/21 to 9/21 (15 records)

Comment: Adult probably overwinters.

Status in MA (automated assessment): Widespread, common
Status in N. America: Native
MA Endangered Species Act status: None
First Year Reported: 2013
Last Year Reported: 2025

Distribution by County: Berkshire, Hampshire, Franklin, Worcester, Middlesex, Essex, Suffolk, Norfolk, Bristol, Plymouth, Barnstable
Number of Records: 55