Isophryxus Schultz, 1977 accepted as
Holophryxus Richardson, 1905 (source of synonymy)
Isophryxus concavus Schultz, 1977 accepted as
Holophryxus acanthephyrae Stephensen, 1912 (source of synonymy)
Isophryxus polyandrus Schultz, 1978 accepted as
Holophryxus polyandrus (Schultz, 1978) (new combination reference)
Isophryxus quadratahumerale Schultz, 1978 accepted as
Holophryxus quadratahumerale (Schultz, 1978) (new combination reference)
Isophryxus septapodus Schultz, 1978 accepted as
Holophryxus septapodus (Schultz, 1978) (new combination reference)