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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


Scientific Classification

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

Description and Identification


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



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

Skiff Moth



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

Isa textula


Crowned Slug Moth Picture


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