Agabus bipustulatus

Description

9.5-11.5mm. A very common black diving beetle with pale brown antennae and brown front legs. It has a smoothly rounded outline with elongate microsculpture within which is a mesh pattern.

Identification difficulty
ID checklist (your specimen should have all of these features)
  • 9.5-11.5mm
  • all black with pale brown antennae and brown front legs
  • males are shiny and females are dull
  • smooth, rounded outline
  • elongate micro-sculpture with a mesh pattern within
Habitat

Favours still or stagnant water or sluggish bays in running water. Sometimes drawn to light or to the metallic paint of cars by polarised light (as in the image below).

When to see it

The adult can be found all year round.

Life History

This is a carnivorous beetle which hunts small creatures in and on the water.

UK Status

Widespread and the commonest water beetle in Britain.

VC55 Status

Common in Leicestershire and Rutland.

Leicestershire & Rutland Map

MAP KEY:

Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2025+ | 2020-2024 | pre-2020

UK Map

Species profile

Species group:
Beetles
Kingdom:
Animalia
Order:
Coleoptera
Family:
Dytiscidae
Records on NatureSpot:
47
First record:
30/09/1987 (Derek Lott)
Last record:
08/07/2024 (Cann, Alan)

Total records by month

% of records within its species group

10km squares with records

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Latest records