Spider Beetle vs Kaup Bess Beetle
Side-by-side species comparison
| Attribute | Spider Beetle | Kaup Bess Beetle |
|---|---|---|
| Scientific Name | Mezium americanum | Passalus interstitialis |
| Order | Coleoptera | Coleoptera |
| Family | Ptinidae | Passalidae |
| Size | 2-4 mm | 30-40 mm |
| Habitat | Underground | Woodlands |
| Diet | Detritivores | Wood Feeders |
| Regions | North America, Europe | Central America, Mexico |
| Conservation | Least Concern | Least Concern |
Spider Beetle
A globular beetle that closely resembles a small spider in shape and movement.
Did You Know?
Its round shiny abdomen and long legs give it a convincing spider-like appearance.
Kaup Bess Beetle
A large, elongate, shiny black bess beetle with prominent mandibles and longitudinal grooves on the elytra. It is the most common Passalid in Central America. Colonies of adults and larvae inhabit decaying logs.
Did You Know?
Bess beetles are subsocial insects where parents and offspring live together and cooperate in maintaining their log galleries.