Oedemasia semirufescens

(Walker, 1865)
Red-washed Prominent

Sort #: 2105 | P #: 930105 | MPG #: 8012 | PFG Page #: 284
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Larval feeding type: External feeder
Larval substrate: Primarily Populus (Poplar), Salix (Willow), also Alnus (Alder), Betula (Birch), Acer (Maple), Rosa (Rose), Prunus serotina* (Black Cherry), Quercus* (Oak)
Phenology: Adult: 6/05 to 8/17 (66 records)

Comment: Previously placed in the genus Oligocentria

Status in MA (automated assessment): Widespread, fairly common
Status in N. America: Native
MA Endangered Species Act status: None
First Year Reported: 1910
Last Year Reported: 2025

Distribution by County: Berkshire, Hampden, Hampshire, Franklin, Worcester, Middlesex, Suffolk, Norfolk, Bristol, Plymouth, Barnstable, Dukes
Number of Records: 144