Postman Butterfly vs Ross's Alpine
Side-by-side species comparison
| Attribute | Postman Butterfly | Ross's Alpine |
|---|---|---|
| Scientific Name | Heliconius melpomene | Erebia rossii |
| Order | Lepidoptera | Lepidoptera |
| Family | Nymphalidae | Nymphalidae |
| Size | Wingspan 55-80mm | 34-42 mm wingspan |
| Habitat | Forests | Tundra & Arctic |
| Diet | Herbivores | Omnivores |
| Regions | South America, North America | Arctic Alaska, northern Canada, Yukon Territory |
| Conservation | Least Concern | Least Concern |
Postman Butterfly
A slender long-winged butterfly with black wings and a bold red band across the forewings. It is a classic example of Mullerian mimicry.
Did You Know?
It is one of the few butterflies that can digest pollen as well as nectar giving it amino acids that extend its lifespan to several months.
Ross's Alpine
A dark brown butterfly with small reddish-orange eye spots on the forewings. Its cryptic coloration allows it to blend with dark tundra soils and rocks. It has a slow, bobbing flight pattern close to the ground.
Did You Know?
Named after the Arctic explorer Sir James Clark Ross, this butterfly takes two full years to develop from egg to adult.