Cycnia collaris

(Fitch, 1857)
Unexpected Cycnia

Sort #: 2174 | P #: 930402 | MPG #: 8229
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Larval feeding type: Feeds externally on leaves
Larval substrate: Asclepias tuberosa* (Butterfly Milkweed), Asclepias syriaca* (Common Milkweed)
Phenology: Adult: 5/16 to 6/12 and 7/19 to 7/30 (19 records)

Comment: C. inopinatus and C. tenerosa are synonyms

Status in MA (automated assessment): Restricted distribution, uncommon
Status in N. America: Native
MA Endangered Species Act status: Threatened
First Year Reported: 1975
Last Year Reported: 2026

Distribution by County: Middlesex, Essex, Plymouth, Barnstable, Dukes
Number of Records: 124