Promecognathinae is a subfamily of beetles in the family Carabidae. It contains 10 species in 7 genera:
Tribe Dalyatini Mateu, 2002
Genus Dalyat Mateu, 2002
Dalyat mirabilis Mateu, 2002
Tribe Palaeoaxinidiini McKay, 1991
Genus Palaeoaxinidium McKay, 1991
Palaeoaxinidium orapense McKay, 1991
Tribe Promecognathini LeConte, 1853
Genus Axinidium Sturm, 1843
Axinidium africanum Sturm, 1843
Axinidium angulatum Basilewsky, 1963
Genus Holaxinidium Basilewsky, 1963
Holaxinidium fitsimonsi Basilewsky, 1963
Genus Metaxinidium Basilewsky, 1963
Metaxinidium leleupi Basilewsky, 1963
Metaxinidium nanum Basilewsky, 1963
Genus Paraxinidium Basilewsky, 1963
Paraxinidium andreaei Basilewsky, 1963
Genus Promecognathus Chaudoir, 1846
Promecognathus crassus LeConte, 1868
Promecognathus laevissimus Dejean, 1829
