Ant-associated beetles of Fennoscandia and Denmark

Ants have a negative impact on populations of many arthropod species. On the other hand, numerous arthropod species live in association with ants. In this paper we list ant-associated beetles (including myrmecophiles) of Fennoscandia and Denmark. Data is based on a literature survey and new field observations. We list 369 ant-associated beetle species of which 73 are categorized as myrmecophilous. Our data suggests that there might be numerous beetle species associated with ants, which are not generally known to do so. This indicates that ant colonies may be important habitats for a large variety of beetle species.