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Crowned Slug Moth (Isa textula)

The crowned slug moth is a member of the family of slug moths. German entomologist Dr Gottlieb August Wilhelm Herrich-Schäffer first named it in 1854.

Crowned Slug Moth

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Scientific Classification


  • Family: Limacodidae
  • Genus: Isa
  • Scientific Name: Isa textula

Description and Identification

Caterpillar

This caterpillar has one of the unique appearances in the world. They are pale-green, with a flattened, oval shape, having two yellow stripes running down their back that form a “horn”. Both sides of their bodies are covered with pastel green hairs, and their tops have less conspicuous hairs. These hairs sting when touched.

Crowned Slug Moth Caterpillar

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Pupa

After maturing, the larvae begin to spin dense oval cocoons where they pupate.

Adult Moth

Sexual Dimorphism: Present but not prominent.

Color and Appearance

Forewings: When opened, the wings appear brown with patches of gray not clearly visible. When closed, the color remains unchanged, with the grayish marking barely seen.

Hindwings: When opened and closed, the hindwings are brown.

Average wingspan: 19 mm

Flight pattern: Consistent

Season: May to August

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Egg

Female moths lay their eggs near the base of the host plant.

Quick Facts

Other NamesSkiff Moth
DistributionNorth America; Florida, Massachusetts, Minnesota, Mississippi, Ontario, and Texas
HabitatDeciduous forests
Lifespan of AdultsNot recorded
Host PlantsCherry, elm, hickory, linden, maple, oak, prunes, and Norway maple
Adult DietDoes not feed

Did You Know

  • Their alternate name, skiff moth, is shared with another species Prolimacodes badia.
Isa textula

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Crowned Slug Moth Picture

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