Ilybius quadriguttatus


Length around 12 mm. A large, dark diving beetle very similar to other members of the Ilybius family.

Identification difficulty

Freshwater ponds and other still or slow flowing, well vegetated water bodies, although it flies well and can be attracted to light.

When to see it

All year round but best from April to September.

Life History

Carnivorous at both the adult and larva life stages.

UK Status

Widespread and fairly frequent in England and Wales. There seem to be fewer records from Scotland.

VC55 Status

Fairly frequent in Leicestershire and Rutland. There were approximately 40 VC55 records for this species up to March 2015.

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Leicestershire & Rutland Map


Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015

UK Map