Petrophila canadensis

(Munroe, 1972)
Canadian Petrophila

Sort #: 1627 | P #: 801345 | MPG #: 4779
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Larval feeding type: Aquatic, feeds from silken web on rocks in riffles of rivers and streams
Larval substrate: Algae and plankton: Navicula, Cymbella
Phenology: Adult: 6/05 to 9/05 (87 records)

Comment: P. canadensis has a fairly prominent white spot just distal of the jagged median white line with no small dark spot against it, as in fulicalis

Status in MA (automated assessment): Fairly widespread, common
Status in N. America: Native
MA Endangered Species Act status: None
First Year Reported: 2015
Last Year Reported: 2025

Distribution by County: Berkshire, Hampshire, Franklin, Worcester, Middlesex, Essex, Norfolk
Number of Records: 106