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.
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.
After maturing, the larvae begin to spin dense oval cocoons where they pupate.
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
Female moths lay their eggs near the base of the host plant.
|Other Names||Skiff Moth|
|Distribution||North America; Florida, Massachusetts, Minnesota, Mississippi, Ontario, and Texas|
|Lifespan of Adults||Not recorded|
|Host Plants||Cherry, elm, hickory, linden, maple, oak, prunes, and Norway maple|
|Adult Diet||Does not feed|
Did You Know
- Their alternate name, skiff moth, is shared with another species Prolimacodes badia.