Dytiscidae Leach, 1815
Coptotomus difficilis LeConte, 1852
Coptotomus interrogatus (Fabricius, 1801)
Coptotomus longulus LeConte, 1852
Coptotomus loticus Hilsenhoff, 1980
Coptotomus serripalpus Say, 1830
Coptotomus venustus (Say, 1823)