Common Water Penny vs Atlas Beetle
Side-by-side species comparison
| Attribute | Common Water Penny | Atlas Beetle |
|---|---|---|
| Scientific Name | Psephenus herricki | Chalcosoma atlas |
| Order | Coleoptera | Coleoptera |
| Family | Psephenidae | Scarabaeidae |
| Size | 4-6 mm (adults); 6-10 mm (larvae) | 60-130 mm |
| Habitat | Rivers & Streams | Forests |
| Diet | Omnivores | Sap Feeders |
| Regions | Eastern North America | Asia |
| Conservation | Least Concern | Least Concern |
Common Water Penny
A small aquatic beetle whose larvae are flattened and round like a copper penny, clinging to rocks in fast streams. Adults are terrestrial and short-lived.
Did You Know?
Larvae are so flat they can cling to rocks in torrential currents that would wash away most other insects.
Atlas Beetle
Named after Atlas from Greek mythology for its incredible strength. Males have three prominent horns. Known for their aggressive territorial behavior.
Did You Know?
Atlas beetles are so strong they can carry objects 4 times their own weight while walking, and males use their triple horns in fierce wrestling matches.