Reed Beetle vs Harris's Diving Beetle
Side-by-side species comparison
| Attribute | Reed Beetle | Harris's Diving Beetle |
|---|---|---|
| Scientific Name | Donacia crassipes | Dytiscus harrisii |
| Order | Coleoptera | Coleoptera |
| Family | Chrysomelidae | Dytiscidae |
| Size | 9-12 mm | 33-40 mm |
| Habitat | Ponds & Lakes | Ponds & Lakes |
| Diet | Root Feeders | Omnivores |
| Regions | Europe, Western Asia | North America |
| Conservation | Least Concern | Least Concern |
Reed Beetle
A striking aquatic leaf beetle with metallic golden-green to coppery elytra and elongated hind legs. It is one of the largest European Donacia species, found on waterlily pads.
Did You Know?
Larvae live entirely underwater, tapping into plant roots for both food and oxygen, using specialized spiracles to breathe air from root aerenchyma.
Harris's Diving Beetle
A large North American diving beetle found in cold, clear lakes and bog ponds. It is one of the largest diving beetles on the continent.
Did You Know?
It can remain submerged for extended periods by trapping air under its elytra, which it uses like an external lung.