Corn Flea Beetle

Corn Flea Beetle - Chaetocnema hortensis

Alternative names
Clover Flea Beetle
Description

1.6-2.3mm. The genus can be recognised by the external tooth on both the mid and hind tibia. Bronze uppers (can be coppery or metallic green). Antennal segments 1-5 are pale then black after this. Legs are pale brown but with darker femora. The punctuation on the elytra do not follow neat, straight lines, particularly near the centre. See ID guidance below for more details.

Similar Species

Others in the genus.

Identification difficulty
ID checklist (your specimen should have all of these features)
  • 1.6-2.3mm
  • External tooth on both mid and hind tibia
  • Elytral punctuation not in neat lines, especially centrally
  • Punctuation on the head is very similar to that on the pronotum
  • The frons is flat without a keel between the antennal insertions
  • The frontal groove on the head ends well before the eyes
Habitat

A leaf beetle found on various grasses, etc.

When to see it

All year especially in spring and summer.

UK Status

Widespread and fairly frequent in Britain.

VC55 Status

A fairly common species 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

Additional images

All NatureSpot records