Xanthorhoe ferrugata

(Clerck, 1759)
Red Twin-Spot

Sort #: 1869 | P #: 910431 | MPG #: 7388 | PFG Page #: 188
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Larval substrate: Herbaceous plants, incl. Cerastium (Chickweed), Glechoma hederacea (Ground Ivy)
Phenology: Adult: 4/16 to 6/27 and 7/3 to 9/22 (269 records)

Comment: Two generations; In Britain the moth is called the Dark-barred Twin-Spot Carpet, whereas X. spadicearia (not in NA) is called the Red Twin-spot Carpet - very confusing!

Status in MA (automated assessment): Widespread, very common
Status in N. America: Holarctic
MA Endangered Species Act status: None
First Year Reported: 1876
Last Year Reported: 2026

Distribution by County: Berkshire, Hampden, Hampshire, Franklin, Worcester, Middlesex, Essex, Suffolk, Norfolk, Bristol, Plymouth, Barnstable, Dukes, Nantucket
Number of Records: 324