Rothschild's Achias vs Red Helen
Side-by-side species comparison
| Attribute | Rothschild's Achias | Red Helen |
|---|---|---|
| Scientific Name | Achias rothschildi | Papilio helenus |
| Order | Diptera | Lepidoptera |
| Family | Platystomatidae | Papilionidae |
| Size | 15-18 mm | 110-140 mm wingspan |
| Habitat | Forests | Forests |
| Diet | Sap Feeders | Omnivores |
| Regions | Papua New Guinea | Southeast Asia (Thailand, Vietnam, Malaysia, Indonesia, Myanmar, Cambodia, Laos) |
| Conservation | Data Deficient | Least Concern |
Rothschild's Achias
A remarkable Papua New Guinean fly where males have enormously elongated eye stalks. Males use their extended eyes to size up rivals. Has the largest head capsule of any known insect.
Did You Know?
Has the largest head capsule relative to body size of any insect, with eye stalks wider than its body.
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.