Cardo Longhorn vs Western Water Penny
Side-by-side species comparison
| Attribute | Cardo Longhorn | Western Water Penny |
|---|---|---|
| Scientific Name | Agapanthia cardui | Psephenus falli |
| Order | Coleoptera | Coleoptera |
| Family | Cerambycidae | Psephenidae |
| Size | 8-15 mm | 4-5 mm (adults) |
| Habitat | Heathland | Mountains |
| Diet | Pollen Feeders | Omnivores |
| Regions | Mediterranean Europe, North Africa | Western North America |
| Conservation | Least Concern | Least Concern |
Cardo Longhorn
A strikingly patterned longhorn with alternating bands of grey and dark pubescence on the elytra. It specializes on thistle stems across the Mediterranean basin. Adults appear in late spring and are active on warm sunny days.
Did You Know?
The species name cardui comes from the Latin for thistle, reflecting its exclusive association with these plants.
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.