Ground Beetles of Ireland

Dromius quadrimaculatus

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Dromius quadrimaculatus
© Roy Anderson
Dromius quadrimaculatus
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(Maps updated 30th November 2009)

Dromius quadrimaculatus (Linnaeus, 1758)

Description: A 5.2-6.4mm long, rather flattened dark brown ground beetle with four prominent white spots on the elytra. Found beneath bark and on trunks of trees. Widely distributed.

World Distribution: A European temperate species (73) distributed across Europe, except the extreme north, east to the Caucasus.

Irish Status: Widespread and by far the most commonly encountered arboreal Dromius.

Ecology: Arboreal and mostly on deciduous trees. A breakdown of recent records: sycamore (11); alder Alnus glutinosa (L.) Gaert. (3); European spruce (3); willow Salix sp. (2); apple Malus sp. (2); Sitka spruce (2); lime Tilia sp. (1); horse chestnut (1).