Spiked Shieldbug - Picromerus bidens


Length 12-13.5 mm. A large and distinctive predatory shieldbug, which has unmistakeable thorn-like projections on the front of the pronotum.

Identification difficulty

Often found in flower-rich woodland edge habitats and also frequent on heathland.

When to see it

Adult: July-November.

Life History

This species usually overwinters as eggs and less frequently as larvae, becoming adult by July/August. The nymphs are greyish-black with pale banded legs and yellow banded antennae. Like the adults, they are predatory, feeding on the larvae of other insects, particularly caterpillars but will also suck sap from plants.

UK Status

Widespread across Britain and Ireland but scarcer further north and recently recorded from Scotland.

VC55 Status

Fairly frequent but not common in Leicestershire and Rutland.

Leicestershire & Rutland Map


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

UK Map

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