Dock Bug - Coreus marginatus - late instar nymph - close up

Description:

A large and mottled reddish-brown squashbug with a broad, oval abdomen. The two small projections between the antennae are diagnostic.

Habitat:

Common and widespread in southern Britain, including Ireland, where it may be found in a variety of dry and damp habitats.

Notes:

There is one generation per year, adults mating and laying eggs in spring. The nymphs feed on dock and other related plants in the Polygonaceae; new adults may be found from August onwards.