Western Water Penny vs Andean Caterpillar Hunter
Side-by-side species comparison
| Attribute | Western Water Penny | Andean Caterpillar Hunter |
|---|---|---|
| Scientific Name | Psephenus falli | Calosoma abbreviatum |
| Order | Coleoptera | Coleoptera |
| Family | Psephenidae | Carabidae |
| Size | 4-5 mm (adults) | 18-25 mm |
| Habitat | Mountains | Mountains |
| Diet | Omnivores | Predators |
| Regions | Western North America | Andes, Southern South America |
| Conservation | Least Concern | Least Concern |
Western Water Penny
A water penny beetle restricted to clean mountain streams in western North America. Its disc-shaped larvae are indicators of high water quality.
Did You Know?
The presence of water penny larvae is used by biologists as a reliable indicator that a stream is unpolluted.
Andean Caterpillar Hunter
A South American caterpillar hunter beetle found in highland regions. It has dark bronze elytra and preys on armyworm caterpillars.
Did You Know?
It has been observed hunting in large numbers during armyworm outbreaks in Argentine crops.