Phyllodesma americana

(Harris, 1841)
American Lappet

Sort #: 1701 | P #: 870003 | MPG #: 7687 | PFG Page #: 248
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Larval feeding type: Feeds externally, initially using a silken 'tent' as a shelter
Larval substrate: Alnus (Alder), Betula (Birch), Quercus (Oak), Populus tremuloides* (Quaking Aspen), Rosa (Rose)
Phenology: Adult: 4/09 to 8/21 (330 records)

Comment: Two overlapping generations, peaking in May and July, the second one probably only partial. Larvae can be found from end of May thru to August.

Status in MA (automated assessment): Widespread, very common
Status in N. America: Native
MA Endangered Species Act status: None
First Year Reported: 1890
Last Year Reported: 2026

Distribution by County: Berkshire, Hampden, Hampshire, Franklin, Worcester, Middlesex, Essex, Suffolk, Norfolk, Bristol, Plymouth, Barnstable, Dukes, Nantucket
Number of Records: 552