Nemoria lixaria

(Guenée, [1858])
Red-bordered Emerald

Sort #: 1888 | P #: 910620 | MPG #: 7033
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Larval substrate: Quercus spp. (Oak)
Phenology: Adult: 6/24 and 9/12 to 10/12 (18 records)

Comment: Apparently rapidly spreading northwards. N. lixaria tends to have a more dentate PM line than N. bistriaria, but they can be difficult to distinguish. Ideally specimens should be retained for closer inspection. Males can be identified from the shape of the uncus, which can often be seen by brushing away scales at the tip of the abdomen.

Status in MA (automated assessment): Fairly widespread, rare
Status in N. America: Native
MA Endangered Species Act status: None
First Year Reported: 2023
Last Year Reported: 2026

Distribution by County: Hampshire, Worcester, Middlesex, Essex, Norfolk, Bristol, Plymouth, Barnstable
Number of Records: 19