Ground Beetles of Ireland

Bembidion aeneum

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Bembidion aeneum
© Roy Anderson
Bembidion aeneum
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(Maps updated 30th November 2009)

Bembidion aeneum Germar, 1824

Description: Small (3.5-4.5mm) bronze-black ground beetle living in silty mud and vegetation on river margins throughout.

World Distribution: This is a Eurasian species with a highly disjunct distribution. Within Europe there are two distinct ranges, one in the coastal countries of the north-west, the other lying in the south-east between Romania and the Caspian Sea. It also occurs in central Asia. We classify it overall as Eurasian Wide-temperate (65).

Irish Status: One of the commonest Bembidion in Ireland. Characteristic of water-margin habitats, particularly riverbanks, throughout. Localised in Britain mainly to the midlands and north-east of England (Luff, 1998).

Ecology: Eurytopic and not restricted to coastal habitats in the British Isles, unlike other parts of its north-west European range. Recorded widely in clayey farmland, waste places and wetlands, including riverbanks, lakeshores and marshes well inland. Often seen on bare agricultural soil with B. lampros and B. bruxellense, or on riverbanks with other members of Subgenus Philochthus.