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Geometroidea >> Geometridae >> Ennominae - Cassymini >> Nematocampa

Nematocampa resistaria

(Herrich-Schäffer, [1856])
Horned Spanworm

Sort #: 1825 | P3 #: 910676 | MPG #: 7010 | PFG Page #: 244
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Larval substrate: Many trees and shrubs, incl. Acer (Maple), Betula (Birch), Corylus* (Hazel), Fragaria* (Strawberry), Helianthus divaricatu*s (Woodland Sunflower), Malus (Apple), Prunus serotina* (Black Cherry), Quercus (Oak), Solidago* (Goldenrod), Viburnum dentatum* (Smooth Arrowwood), Ulmus (Elm), Pinus (Pine), Picea (Spruce), Abies (Fir), Tsuga (Hemlock), Larix (Larch)
Phenology: Adult: 6/06 to 10/08 (208 records)

Status in MA (automated assessment): Widespread, very common
Status in N. America: Native
MA Endangered Species Act status: None
First Year Reported: 1906
Last Year Reported: 2021

Distribution by County: Berkshire, Hampden, Hampshire, Franklin, Worcester, Middlesex, Essex, Suffolk, Norfolk, Bristol, Plymouth, Barnstable, Dukes, Nantucket
Number of Records: 560

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