Great diving beetle — size comparison

The great diving beetle is a predator of ponds and slow waters. Adults seek invertebrates, tadpoles and small fish and regularly surface to renew air beneath th

Silhouette comparison

Length

od przodu głowy do końca odwłoka · bez czułków, nóg i wystających skrzydełScale for the stated dimensions · each animal is labelled

Great diving beetle

Dytiscus marginalis

ok. 30 mmAdult male
Body length

od przodu głowy do końca odwłoka · bez czułków, nóg i wystających skrzydełMeasurement: side

The stated dimensions share a scale without a common ground line. Bank card · long edge 8.56 cm
Measurement comparisonScale in cm
0246810
Great diving beetleBody lengthapprox. 30 mm
Bank cardLong edge of the card8.56 cm

The scale compares the named dimensions. View direction and measurement points are given for each animal.

Scale based on the stated dimensions for each animal

Bank card · long edge 8.56 cm
Great diving beetle — size comparison — facts and sources

The great diving beetle is a predator of ponds and slow waters. Adults seek invertebrates, tadpoles and small fish and regularly surface to renew air beneath their wing cases.

Larvae also hunt using powerful jaws. Near development’s end they move to damp bankside soil to pupate.

Measurement sources