Holotachysphex de Beaumont, 1940

Holotachysphex de Beaumont, 1940:179 . Type species: Tachysphex holognathus Morice, 1897, by monotypy. Phytosphex Arnold, 1951:153 . Type species: Tachysphex turneri Arnold, 1923, by original designation. Haplognatha Gussakovskij, 1952:248 . Type species: Haplognatha prosopigastroides Gussakovskij, 1952, by original

designation and monotypy. Synonymized by de Beaumont, 1955:222.