Cascade Rock Crawler vs Zebra Swallowtail

Side-by-side species comparison

Attribute Cascade Rock Crawler Zebra Swallowtail
Scientific Name Grylloblatta sculleni Eurytides marcellus
Order Grylloblattodea Lepidoptera
Family Grylloblattidae Papilionidae
Size 15-22 mm body length 64-100 mm wingspan
Habitat Caves Woodlands
Diet Omnivores Omnivores
Regions Oregon, Cascade Range Eastern United States
Conservation Near Threatened Least Concern

Cascade Rock Crawler

A rare, eyeless rock crawler found in lava tube caves in the Cascade Range. It is adapted to permanent darkness and cold temperatures.

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Did You Know?

It was discovered in a lava tube cave and has greatly reduced eyes.

Zebra Swallowtail

A pale greenish-white swallowtail with bold black stripes and very long hindwing tails. Its striking zebra-like pattern makes it one of the most recognizable North American butterflies.

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Did You Know?

Spring-emerging individuals have shorter tails and darker markings than the larger, paler summer generation.