Arctic Rove Beetle vs Stridulating Passalid
Side-by-side species comparison
| Attribute | Arctic Rove Beetle | Stridulating Passalid |
|---|---|---|
| Scientific Name | Quedius boops | Passalus punctatostriatus |
| Order | Coleoptera | Coleoptera |
| Family | Staphylinidae | Passalidae |
| Size | 6-9 mm | 30-42 mm |
| Habitat | Tundra & Arctic | Woodlands |
| Diet | Predators | Wood Feeders |
| Regions | Scandinavia, Iceland, northern Russia, Scotland, Arctic Canada | Central America, South America |
| Conservation | Least Concern | Least Concern |
Arctic Rove Beetle
A medium-sized rove beetle with a sleek black body and short elytra. It has large eyes for hunting in dim conditions. Found under stones and in moss on Arctic tundra where it preys on other invertebrates.
Did You Know?
This beetle produces defensive chemical secretions from abdominal glands that deter would-be predators.
Stridulating Passalid
A large, shiny black bess beetle with prominently punctate-striate elytra and strong mandibles. It lives in family groups within decaying logs. Known for producing a wide repertoire of stridulatory sounds for communication.
Did You Know?
Adults produce sounds by rubbing specialized ridges on the abdomen against the underside of the wings, creating at least 14 distinct calls.