Ground Beetles of Ireland

Bembidion maritimum

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

Bembidion maritimum Stephens, 1835

Description: A 5-5.5mm long ground beetle, black with four orange-brown elytral spots, found in muddy conditions in estuarine reedbeds, saltmarshes, muddy strandlines on the coast. Local and scarce.

World Distribution: An Oceanic temperate species (71) of very restricted distribution on coasts from south-west Denmark and the southern half of the British Isles to western France.

Irish Status: Very locally distributed along the north, south and east coasts, but always encountered in small numbers. Possibly declining and vulnerable.

Ecology: Very stenotopic and confined to sea coasts where fresh water enters the sea. It has mainly been recorded from clayish sand, where it hides under stones or Ulva/Enteromorpha mats on or near the strandline.