Ennomos magnaria

Guenée, [1858]
Maple Spanworm

Sort #: 1929 | P3 #: 911227 | MPG #: 6797 | PFG Page #: 230
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Larval substrate: Deciduous trees, incl. Alnus (Alder), Tilia (Basswood), Acer (Maple), Quercus (Oak), Populus (Poplar)
Phenology: Adult: 7/04 to 10/22 (210 records)

Comment: Mainly flies Aug-Oct, but we have two very early records from the first half of July

Status in MA (automated assessment): Widespread, very common
Status in N. America: Native
MA Endangered Species Act status: None
First Year Reported: 1891
Last Year Reported: 2022

Distribution by County: Berkshire, Hampden, Hampshire, Franklin, Worcester, Middlesex, Essex, Suffolk, Norfolk, Bristol, Plymouth, Barnstable, Dukes, Nantucket
Number of Records: 336