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Dock Leaf Bug - Coreus Marginatus
Also known as - Brown Squash Bug
The Dock Leaf Bug is a very common species in the British Isles and parts of Northern America reaching a length of 12-15 mm (0.5-0.6in). Found on many flowers both in the garden and open grassy areas, often in small groups of both adults and larvae. It does not have the side stripes seen in other Shield Bug species and it's shoulders are more rounded. It has two small distinctive pointers in the front of the head between the antennae which have dark tips, whilst those of the superficially similar Arma custos (not a Uk species) are light tipped. Their respective feeding habits also differ, the Dock Leaf Bug being vegetarian feeding on plants and fruit, whilst Arma custos predates weevils.