Common Water Penny vs Stag-Horned Dung Beetle
Side-by-side species comparison
| Attribute | Common Water Penny | Stag-Horned Dung Beetle |
|---|---|---|
| Scientific Name | Psephenus herricki | Onthophagus rangifer |
| Order | Coleoptera | Coleoptera |
| Family | Psephenidae | Scarabaeidae |
| Size | 4-6 mm (adults); 6-10 mm (larvae) | 7-12 mm |
| Habitat | Rivers & Streams | Forests |
| Diet | Omnivores | Dung Feeders |
| Regions | Eastern North America | Southeast 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.
Stag-Horned Dung Beetle
A small, dark brown tunneling dung beetle with spectacularly branched antler-like horns in major males. The branching horns resemble reindeer antlers. It inhabits forest habitats where it tunnels beneath monkey and civet dung.
Did You Know?
The branching horns of this beetle are some of the most complex found in any insect species.