Idia aemula

Idia aemula
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Superfamily: Noctuoidea
Family: Erebidae
Subfamily: Herminiinae
Genus: Idia
Species: I. aemula
Binomial name
Idia aemula
Hübner, 1813
Synonyms
  • Idia aemulalis Hübner, 1821
  • Idia undulalis (Stephens, 1834)
  • Idia mollifera (Walker, 1858)
  • Idia herminioides (Walker, 1860)
  • Idia concisa (Walker, 1860)


The Common Idia, Powdered Snout, or Waved Tabby (Idia aemula) is a litter moth of the Erebidae family. It is found from Canada south to Florida and Texas and in most of Eurasia.

The wingspan is 20–30 mm. In North America, adults are on wing from May to October in the north and from April to November in the south. There are two to three generations per year.

The larvae feed on dead leaves.

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