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Common Oak Moth (Phoberia atomaris)

The common oak moth is a member of the family of Erebidae moths. It is found in Northern America and has several synonyms like Phoberia orthosiodesPhoberia ingenua, and Phoberia porrigens.

Common Oak Moth

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Scientific Classification


  • Family: Erebidae
  • Genus: Phoberia
  • Scientific Name: Phoberia atomaris

Description and Identification

Caterpillar

The larva has a mottled brown appearance, with black, olive green, pink, and white lines all over their body. Another significant feature of the caterpillar is the diamond-shaped spots covering its abdominal segments.

Common Oak Moth Caterpillar

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Pupa

Pupation occurs when the larvae mature.

Adult Moth

Sexual Dimorphism: Present but not prominent.

Color and Appearance

When the wings are opened, they appear brownish, covered with two tan lines that are broken into three bands, formed in a curved or jagged pattern. When the wings are closed, the pattern remains the same, with small dots also visible near the edges.

Average wingspan: 3.8 cm

Flight pattern: Erratic

Season: March to July

Phoberia atomaris

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Egg

The eggs can be found either on the host plant or soil.

Quick Facts

DistributionEastern North America
HabitatDeciduous forests
Lifespan of AdultsNot recorded
Host PlantsNorthern red oak
Adult DietDoes not feed

Did You Know

  • German entomologist Jacob Hübner first described this species in 1818.
  • They get their name after the host plants (oak) the caterpillars feed on.
Common Oak Moth Image

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Common Oak Moth Picture

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