Lacanobia grandis

(Guenée, 1852)
Grand Arches

Sort #: 2830 | P #: 932882 | MPG #: 10300 | PFG Page #: 490
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Larval substrate: Deciduous trees, incl. Alnus (Alder), Cornus floridensis (Flowering Dogwood), Populus tremuloides (Quaking Aspen), Prunus (Cherry), Salix (Willow)
Phenology: Adult: 5/27 to 7/23 (131 records)

Status in MA (automated assessment): Widespread, very common
Status in N. America: Native
MA Endangered Species Act status: None
First Year Reported: 1880
Last Year Reported: 2025

Distribution by County: Berkshire, Hampden, Hampshire, Franklin, Worcester, Middlesex, Essex, Suffolk, Norfolk, Bristol, Plymouth, Barnstable, Dukes, Nantucket
Number of Records: 335