A review of Malagasy genus Styphacus Fairmaire, 1901 (Coleoptera: Tenebrionidae: Platynotini)
The genus Styphacus Fairmaire, 1901 (type species: Styphacus decorsei Fairmaire, 1901) is revised and illustrated. Three new species are described: Styphacus drugmandi sp. nov., S. girardi sp. nov. and S. pauliani sp. nov. Key for species determination is provided. The genus belongs to melanocratoid group of the tribe Platynotini, and represents of the Southern Malagasy endemic fauna.