Coelodasys unicornis

(Smith, 1797)
Unicorn Caterpillar Moth

Sort #: 2101 | P #: 930100 | MPG #: 8007 | PFG Page #: 282
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Larval feeding type: External feeder
Larval substrate: Deciduous trees, incl. Acer (Maple), Aronia melanocarpa* (Black Huckleberry), Carya (Hickory), Corylus* (Hazelnut), Quercus* (Oak), Prunus serotina* (Black Cherry), Salix* (Willow), Spiraea alba* (White Meadowsweet), Vaccinium corymbosum* (Highbush Blueberry)
Phenology: Adult: 5/08 to 9/28 (325 records)

Comment: Previously placed in the genus Schizura

Status in MA (automated assessment): Widespread, very common
Status in N. America: Native
MA Endangered Species Act status: None
First Year Reported: 1833
Last Year Reported: 2025

Distribution by County: Berkshire, Hampden, Hampshire, Franklin, Worcester, Middlesex, Essex, Suffolk, Norfolk, Bristol, Plymouth, Barnstable, Dukes, Nantucket
Number of Records: 651