Nemoria bistriaria

Nemoria bistriaria, the red-fringed emerald or two-striped emerald, is a species of moth of the family Geometridae. It is found from New Brunswick to Florida, west to Texas, north to Ontario.

Nemoria bistriaria
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Class:
Insecta
Order:
Lepidoptera
Family:
Geometridae
Tribe:
Nemoriini
Genus:
Nemoria
Species:
N. bistriaria
Binomial name
Nemoria bistriaria
Hübner, 1818
Synonyms
  • Aplodes rubrolinearia Packard, 1873
  • Aplodes brunnearia Packard, 1876
  • Geometra siccifolia Fitch, 1857
  • Aplodes rubromarginaria Packard, 1876

The wingspan is about 22 mm. Adults are on wing from March to October in the south and from May to August in the north. There are at least two generations per year.

The species occurs in a seasonal brown form where the green colour of the wings is entirely replaced by a light coffee colour.

The larvae of ssp. siccifolia feed on white oak, while larvae of the nominate subspecies have been recorded on eastern black walnut, black birch and oak.

Subspecies
  • Nemoria bistriaria bistriaria
  • Nemoria bistriaria siccifolia (Pennsylvania to southern Quebec and Ontario)


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