Ant-Nest Hister Beetle vs Washburn's Rock Crawler
Side-by-side species comparison
| Attribute | Ant-Nest Hister Beetle | Washburn's Rock Crawler |
|---|---|---|
| Scientific Name | Hetaerius ferrugineus | Grylloblatta washingtonensis |
| Order | Coleoptera | Grylloblattodea |
| Family | Histeridae | Grylloblattidae |
| Size | 1.5-2.5 mm | 15-25 mm |
| Habitat | Woodlands | Caves |
| Diet | Detritivores | Detritivores |
| Regions | Europe, North America | Pacific Northwest, United States |
| Conservation | Least Concern | Near Threatened |
Ant-Nest Hister Beetle
A tiny, reddish-brown hister beetle that lives exclusively inside ant nests. It is tolerated by its ant hosts and feeds on detritus and small arthropods.
Did You Know?
It produces appeasement chemicals from thoracic glands that prevent ants from attacking it inside the colony.
Washburn's Rock Crawler
A pale, eyeless ice crawler found in the Cascade Range. It forages at night on snow surfaces in near-freezing temperatures.
Did You Know?
Their eggs can take up to five years to hatch in the cold conditions where they live.