Twenty new species of Scaphidiinae (Coleoptera: Staphylinidae) from Minas Gerais, Southeast Brazil

Scaphidiinae (shining fungus beetles) is a subfamily of Staphylinidae generally associated with fungi and slime moulds. They are distributed worldwide, but the Brazilian fauna is poorly known. In this manuscript, twenty new species assigned to five genera are described: Cyparium fugitivum sp. nov., Alexidia convivalis sp. nov., A. solitaria sp. nov., Baeocera ardua sp. nov., B. bottine sp. nov., B. colibri sp. nov., B. facilis sp. nov., B. inusitata sp. nov., B. pulga sp. nov., Scaphisoma hilarum sp. nov., S. infinitum sp. nov., S. mutabile sp. nov., S. peculiare sp. nov., Toxidium brigadeirense sp. nov., T. distortum sp. nov., T. fleche sp. nov., T. inusitatum sp. nov., T. scalenum sp. nov., T. speratum sp. nov. and T. ultimum sp. nov. The specimens were collected in remnants of Atlantic Forest, in Minas Gerais, Southeast Brazil, directly from the host (fungi and/or slime moulds). Descriptions include host associations, illustrations of the external and internal morphology of adult males and females, whenever it is possible. Also, an illustrated key to the Brazilian genera and their respective diagnoses is provided.