Eu-habitat-directive
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Bolbelasmus
Bolbelasmus is a genus of earth-borer beetles in the family Bolboceratidae, comprising at least 29 described species and 2 subspecies. It represents the most widely distributed genus among bolboceratine beetles, occurring across the Holarctic and Oriental regions. Species are predominantly soil-dwelling, with limited natural history documentation available for most taxa. The genus includes the endangered European species B. unicornis, which is listed under EU Habitat Directive Annexes II and IV.