''Coptotomus'' is a genus of

predaceous diving beetle The Dytiscidae, from the Ancient Greek word δυτικός (''dystikos''), meaning "able to dive", are the predaceous diving beetles, a family of water beetles. They occur in virtually any freshwater habitat around the world, but a few species li ...

s in the family

Dytiscidae The Dytiscidae, from the Ancient Greek word δυτικός (''dystikos''), meaning "able to dive", are the predaceous diving beetles, a family of water beetles. They occur in virtually any freshwater habitat around the world, but a few species l ...

, the only genus of the subfamily Coptotominae. There are about six described species in ''Coptotomus'', found in North America and the

Neotropics The Neotropical realm is one of the eight biogeographic realms constituting Earth's land surface. Physically, it includes the tropical terrestrial ecoregions of the Americas and the entire South American temperate zone. Definition In biogeog ...

. There is one extinct species from the

Palearctic The Palearctic or Palaearctic is a biogeographic realm of the Earth, the largest of eight. Confined almost entirely to the Eastern Hemisphere, it stretches across Europe and Asia, north of the foothills of the Himalayas, and North Africa. Th ...

Species

These six species belong to the genus ''Coptotomus'': * †'' Coptotomus balticus'' Hendrich and Balke, 2020 * '' Coptotomus difficilis'' LeConte, 1852 * '' Coptotomus interrogatus'' (Fabricius, 1801) * '' Coptotomus longulus'' LeConte, 1852 * '' Coptotomus loticus'' Hilsenhoff, 1980 * '' Coptotomus serripalpus'' Say, 1830 * '' Coptotomus venustus'' (Say, 1823)

Species

References

Further reading