Thin-neck Cave Beetle vs Japanese Ice Crawler
Side-by-side species comparison
| Attribute | Thin-neck Cave Beetle | Japanese Ice Crawler |
|---|---|---|
| Scientific Name | Pseudanophthalmus parvicollis | Galloisiana nipponensis |
| Order | Coleoptera | Grylloblattodea |
| Family | Carabidae | Grylloblattidae |
| Size | 4-5 mm | 20-25 mm |
| Habitat | Caves | Mountains |
| Diet | Detritivores | Detritivores |
| Regions | United States | Asia |
| Conservation | Endangered | Vulnerable |
Thin-neck Cave Beetle
A narrowly endemic cave beetle with a distinctively slender pronotum. It inhabits caves in the Appalachian karst region.
Did You Know?
Its narrow neck (pronotum) helps it squeeze through tiny fissures in cave rock.
Japanese Ice Crawler
A nocturnal wingless insect found at high elevations in Japan. One of the most primitive living insects, often called a living fossil from the Permian period.
Did You Know?
Ice crawlers are considered living fossils — their order dates back to the Permian period, 250 million years ago, before the dinosaurs evolved.