Bollmaniulus spenceri Chamberlin, 1951 (original description)
Conotyla jonesi Chamberlin, 1951 accepted as Taiyutyla jonesi (Chamberlin, 1951) (original description)
Nearctodesmus boydi Chamberlin, 1951 accepted as Nearctodesmus insulanus (Chamberlin, 1941) (original description)
Nearctodesmus carli Chamberlin, 1951 accepted as Nearctodesmus insulanus (Chamberlin, 1941) (original description)
Nearctodesmus malkini Chamberlin, 1951 accepted as Nearctodesmus cerasinus (Wood, 1864) (original description)
Nemasoma leechi Chamberlin, 1951 accepted as Orinisobates expressus (Chamberlin, 1941) (original description)
Opiona Chamberlin, 1951 (original description)
Opiona columbiana Chamberlin, 1951 (original description)
Orophe Chamberlin, 1951 (original description)
Orophe cabinetus Chamberlin, 1951 (original description)
Rhinocricus vancouveri Chamberlin, 1951 (original description)
Sigmocheir Chamberlin, 1951 (original description)
Sigmocheir calaveras Chamberlin, 1951 (original description)
Taiyutyla jonesi (Chamberlin, 1951) (original description)
Zygotyla Chamberlin, 1951 (original description)
Zygotyla phana Chamberlin, 1951 (original description)