These seven speciesbelong to the genus Brachygnathus:Brachygnathus angusticollisBrachygnathus fervidusBrachygnathus festivusBrachygnathus imperialisBrachygnathus intermediusPerty, 1830Brachygnathus muticus Perty, 1830 Brachygnathus oxygonus Perty, 1830