Synonyms: Blepharipus carbonarius; Blepharipus cinctipes; Blepharipus columbiae; Blepharipus nigrior; Coelocrabro carbonarius; Coelocrabro leucostoma; Crabro carbonarius (heterotypic); Crabro cinctipes; Crabro leucostoma; Crabro melanarius; Crabro niger (heterotypic); Crabro nigrior; Crabro nigror; Crabro rugosus (heterotypic); Crabro servus; Crossocerus carbonarius; Crossocerus cinctipes; Crossocerus cinctitarsis; Crossocerus columbiae; Crossocerus melanarius; Crossocerus niger (heterotypic); Crossocerus rugosus; Crossocerus stygius; Pemphredon leucostoma; Sphex leucostoma (homotypic); Stenocrabro cinctitarsis; Thyreopus stygius; Thyreopus utensis