Pyromorpha dimidiata

Herrich-Schäffer, 1854
Orange-patched Smoky Moth

Sort #: 934 | P #: 570019 | MPG #: 4639 | PFG Page #: 70
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Larval feeding type: On dead and decaying leaves on the ground. Pupa overwinters in a brown silken cocoon spun between leaves.
Larval substrate: Quercus (Oak), Populus (Poplar), Salix (Willow) and presumably other trees
Phenology: Adult: 5/14 to 8/24 (156 records)

Status in MA (automated assessment): Fairly widespread, very common
Status in N. America: Native
MA Endangered Species Act status: None
First Year Reported: 1902
Last Year Reported: 2025

Distribution by County: Berkshire, Middlesex, Suffolk, Norfolk, Bristol, Plymouth, Barnstable, Dukes
Number of Records: 201