Opisthoscyphus

This genus is not in use as it is currently considered to be a junior synonym of Gnamptogenys.

Nomenclature

 * OPISTHOSCYPHUS [junior synonym of Gnamptogenys]
 * Opisthoscyphus Mann, 1922: 4. Type-species: Opisthoscyphus scabrosus (junior synonym of Alfaria minuta), by original designation.
 * Opisthoscyphus junior synonym of Alfaria: Brown, in Borgmeier, 1957: 115.
 * Opisthoscyphus junior synonym of Gnamptogenys: Brown, 1958g: 212.