Horn scaling relationships in three species of Bledius Leach 1819 (Insecta: Coleoptera: Staphylinidae) show no indication of fitting non-linear allometric models

The males of some species of the rove beetle genus Bledius Leach (1819) have a pronounced horn protruding from the anterior margin of the pronotum. The horn function is not known, however in many o...