Isabella Tiger Moth
Isabella Tiger Moth
Pyrrharctia isabella
Insecta
COMMON

Stats

Lifespan
Annual
Size
Medium
Diet
Herbivore
Activity
Nocturnal
Social
Solitary
Biome
Temperate grassland
Range
North America
Movement
Flight
Breeding
Egg-laying
Defense
Spines
Status
Common

About

The winged adult of the iconic woolly bear caterpillar, with pale orange-yellow forewings scattered with small dark spots and salmon-pink hindwings. Despite folk belief, the woolly bear's rust-colored band width cannot predict winter severity — it simply reflects how much the caterpillar has grown.

Life cycle

  1. 1.
    egg
    A tiny ribbed egg laid on the underside of a host-plant leaf, hatching within days.
  2. 2.
    caterpillar
    A voracious caterpillar feeds and molts through several instars, growing rapidly.
  3. 3.
    cocoon
    A silk cocoon spun in leaf litter or soil while the body remodels into a winged adult.
  4. 4.
    moth
    A winged adult with feathery antennae and scaled wings, most active after dark.

Learn more

Taxonomy

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Lepidoptera
Family
Erebidae
Genus
Pyrrharctia
Species
Pyrrharctia isabella