Scientific Classifications explained
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UK Nature > Bugs > Coreus marginatus
Scientific Name: Coreus marginatus
Common Name: Dock Bug
With a length of 13-15 mm, Coreus marginatus is fairly large bug, mottled reddish-brown in colouration with a broad, oval abdomen. Between the antennae are two small projections, known as antenniferous tubercles, which can be used to distinguish this species from other superficially similar species. Commonly known as the dock bug as it feeds on the leaves and seeds of docks and sorrels.
There is one generation per year, the adults mating and laying eggs in spring. The resulting nymphs feed on dock and other related plants with any new adults will be usually found from August onwards. Like other Coreidae the dock bug has an annual life cycle consisting of an egg followed by five successive nymphal instars before becoming an adult. It is often found in dense vegetation, such as hedgerows and wasteland and is common and widepread in southern Britain.
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