Parapediasia teterrellus

(Zincken, 1821)
Bluegrass Webworm

Sort #: 1670 | P #: 801529 | MPG #: 5451 | PFG Page #: 152
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Larval substrate: Grasses, incl. Poa pratensis (Kentucky Blue Grass) and Festuca arundinacea (Tall Fescue)
Phenology: Adult: 5/21 to 10/12 (237 records)

Status in MA (automated assessment): Widespread, very common
Status in N. America: Native
MA Endangered Species Act status: None
First Year Reported: 1899
Last Year Reported: 2026

Distribution by County: Berkshire, Hampden, Hampshire, Franklin, Worcester, Middlesex, Essex, Suffolk, Norfolk, Bristol, Plymouth, Barnstable, Dukes, Nantucket
Number of Records: 248