Douglas-fir Tussock Moth vs Red Helen
Side-by-side species comparison
| Attribute | Douglas-fir Tussock Moth | Red Helen |
|---|---|---|
| Scientific Name | Orgyia pseudotsugata | Papilio helenus |
| Order | Lepidoptera | Lepidoptera |
| Family | Erebidae | Papilionidae |
| Size | 25-35 mm wingspan (males) | 110-140 mm wingspan |
| Habitat | Forests | Forests |
| Diet | Omnivores | Omnivores |
| Regions | North America | Southeast Asia (Thailand, Vietnam, Malaysia, Indonesia, Myanmar, Cambodia, Laos) |
| Conservation | Not Evaluated | Least Concern |
Douglas-fir Tussock Moth
A defoliator of Douglas-fir and true firs in western North America. Outbreaks cause severe defoliation and tree mortality in dry inland forests.
Did You Know?
Females are flightless and lay their eggs directly on their cocoons.
Red Helen
A large, elegant swallowtail butterfly with black wings marked by large creamy-white patches on the hindwings and red crescents along the hindwing margin. It has a slow, sailing flight.
Did You Know?
The caterpillar has an osmeterium, a bright orange forked organ behind the head that releases a foul smell to deter predators.