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A large and distinctive dark grey squashbug with cream markings on the connexivum. Early instar larvae have very spiny antennae and a green abdomen. Later instars are superficially similar to the much commoner Coreus marginatus but the abdominal tergites are more pointed.
A local species which is confined to coastal cliffs and sand dunes between Kent and north Wales, with outlying populations on the north Yorkshire coast. The foodplants are various Asteraceae.
Adult: All year
Length 11-12 mm
