Philonthus marginatus

Philonthus marginatus

Description

7 to 9.5mm. The reddish-yellow lateral margins to the pronotum make this beetle easy to identify. The remainder of the pronotum, head, and abdomen are shining black. The elytra are blackish with long overlapping hairs and the legs usually yellowish though sometimes darkened. The antennae are black with a yellow underside to the first segment as also found in P. cognatus.

Identification difficulty
ID checklist (your specimen should have all of these features)
  • 7-9.5mm
  • Body all black except for irregular yellow sides to the pronotum
  • 1st and 2nd antennal segments yellow ventrally (as in P. cognatus), otherwise black
  • Four rows of punctures on pronotum (including those on the hind margin)
  • Pale, long pubescence on the elytra
  • Legs yellow/pale brown
Habitat

On damp soils in grassland or open woodland. Often on or around dung or other decaying matter.

UK Status

Widespread and generally common.

VC55 Status

Fairly common in Leicestershire and Rutland. There were a total of 87 VC55 records for this species up to March 2015.

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