Flattened Giant Millipede Beetle vs Ruddy Barklouse
Side-by-side species comparison
| Attribute | Flattened Giant Millipede Beetle | Ruddy Barklouse |
|---|---|---|
| Scientific Name | Passalus unicornis | Elipsocus hyalinus |
| Order | Coleoptera | Psocoptera |
| Family | Passalidae | Elipsocidae |
| Size | 30-45 mm | 2-3 mm |
| Habitat | Woodlands | Forests |
| Diet | Wood Feeders | Wood Feeders |
| Regions | Central Africa (Cameroon, Gabon, DRC, Congo) | Europe |
| Conservation | Least Concern | Least Concern |
Flattened Giant Millipede Beetle
A large, flattened bess beetle with a shiny black body and a small horn on the head. Adults and larvae live together in rotting logs in a subsocial arrangement. Adults produce sounds by rubbing their hindwings against the abdomen.
Did You Know?
Parents feed their larvae pre-chewed wood and communicate with them using stridulatory sounds, one of the few examples of parental care in beetles.
Ruddy Barklouse
A delicate bark louse with translucent wings found in European forests. It lives on lichens and algae growing on tree trunks.
Did You Know?
Its nearly transparent wings make it almost invisible when resting on pale lichen.