Poecilus cupreus


11-13 mm with a shiny coppery green appearance. There are four Poecilis species in Britain but only two are common and likely to be found in Leicestershire and Rutland.  Poecilis is distinguished as a genus by the keel on the basal antennal segments.

Similar Species

Poecilis cupreus is distinguished from the similar P. versicolor by having fine punctuations on its head between its eyes. In P. versicolor, the head is completely smooth and unpunctured. P. versicolor also prefers wetter habitats.

Identification difficulty
ID guidance
  • 11-13mm
  • metallic green
  • keel on the basal antennal segments, two basal segments are pale
  • fine perforations between the eyes
  • slight outward projection at hind angle of pronotum
Recording advice

You must have examined the specimen under a microscope. Add a comment to note the key ID features.


Prefers open, dry habitats with short grass e.g. parkland and agricultural fields but also occasionally in woodland.

When to see it

Most likely to be seen in spring and summer

Life History

It is a general predator. Breeds in spring

UK Status

Common but local across southern England and south Wales as far south as the Wash with scattered records south to Scotland

VC55 Status

Fairly common in Leicestershire and Rutland. There were a total of 77 VC55 records for this species up to March 2015.

Leicestershire & Rutland Map


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

UK Map