Dicheirotrichus gustavi

Dicheirotrichus luridipennis
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Coleoptera
Family:	Carabidae
Genus:	Dicheirotrichus
Species:	D. gustavi
Binomial name
Dicheirotrichus gustavi Crotch, 1871

Dicheirotrichus gustavi is a ground beetle which emerges from cracks or holes to feed on tidal salt marshes after dusk. Despite living in a coastal environment, it has no cycle of behaviour linked to the tides, simply scurrying for dry land when caught by the approaching sea. It will eat the larvae of another intertidal beetle, Bledius spectabilis, if they are left unprotected by the adult.

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Wikipedia