Tanner Beetle vs Bordered Great Diving Beetle
Side-by-side species comparison
| Attribute | Tanner Beetle | Bordered Great Diving Beetle |
|---|---|---|
| Scientific Name | Prionus coriarius | Dytiscus circumflexus |
| Order | Coleoptera | Coleoptera |
| Family | Cerambycidae | Dytiscidae |
| Size | 18-45 mm | 28-34 mm |
| Habitat | Woodlands | Ponds & Lakes |
| Diet | Root Feeders | Omnivores |
| Regions | Western Europe, Central Europe, Southern Europe | Europe |
| Conservation | Least Concern | Near Threatened |
Tanner Beetle
A large, robust, dark brown longhorn beetle that flies noisily at dusk. Its powerful larvae bore into the roots of deciduous trees for up to four years.
Did You Know?
Males produce a squeaking sound by rubbing their thorax against their head when handled.
Bordered Great Diving Beetle
A large British diving beetle similar to D. marginalis but with expanded yellow margins. It prefers larger, more permanent water bodies.
Did You Know?
Females have deeply grooved elytra while males have smooth ones, making the sexes easy to distinguish.