Acharia stimulea

(Clemens, 1860)
Saddleback Caterpillar Moth

Sort #: 950 | P #: 570081 | MPG #: 4700 | PFG Page #: 76
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Larval feeding type: External feeder on leaves
Larval substrate: Various, incl. Malus (Apple), Vaccinium (Blueberry), Ulmus (Elm), Acer (Maple), Quercus (Oak)
Phenology: Adult: 6/25 to 7/29 (5 records)

Comment: Seems to be a specialty of Bristol County

Status in MA (automated assessment): Restricted distribution, common
Status in N. America: Native
MA Endangered Species Act status: None
First Year Reported: 1982
Last Year Reported: 2026

Distribution by County: Hampden, Hampshire, Bristol, Plymouth
Number of Records: 19