Coptotomus longulus

Coptotomus longulus is a species of predaceous diving beetle in the family Dytiscidae. It is found in North America.

Subspecies
These two subspecies belong to the species Coptotomus longulus:
 * Coptotomus longulus lenticus Hilsenhoff, 1980
 * Coptotomus longulus longulus LeConte, 1852