Synonyms: Aphanisus lenis; Aphanisus nigritus; Blennocampa geniculatus; Blennocampa gilletei; Claremontia geniculata (pro parte); Monophadnoides collaris; Monophadnoides concessus; Monophadnoides consobrinus; Monophadnoides consonus; Monophadnoides conspercus; Monophadnoides conspicuus; Monophadnoides constitutus; Monophadnoides coracinus; Monophadnoides costalis; Monophadnoides crassus; Monophadnoides curiosus; Monophadnoides geniculatus; Monophadnoides kindcaidi; Monophadnoides obversus; Monophadnoides shawi; Monophadnus atracornis; Monophadnus hudsonicus; Selandria nigella; Selandria rubi (homotypic); Tenthredo geniculata (heterotypic); Tenthredo longicornis