Predaceous-diving-beetles
Guides
Aciliini
Aciliini is a tribe of predaceous diving beetles within the family Dytiscidae, containing approximately 7 genera and at least 69-70 extant species. The tribe includes well-known genera such as Acilius, Graphoderus, and Thermonectus, which are medium to large-sized beetles found in freshwater habitats. Members are recognized as active predators in aquatic ecosystems.
Agabini
Agabini is a tribe of predaceous diving beetles in the family Dytiscidae, comprising approximately 500 species across six genera: Agabus, Ilybius, Platambus, Agabinus, Hydronebrius, and Ilybiosoma. Members are primarily aquatic predators found in lentic (standing water) and lotic (flowing water) habitats across the Holarctic region and beyond. The tribe exhibits diverse life cycle strategies, with variation in overwintering stages and habitat use between aquatic and terrestrial environments.
Agabinus
Agabinus is a genus of predaceous diving beetles (family Dytiscidae) established by Crotch in 1873. The genus contains two described species: Agabinus glabrellus and Agabinus sculpturellus. Members are found in North America and are classified within the subfamily Agabinae.
Bidessonotus
Bidessonotus is a genus of predaceous diving beetles in the family Dytiscidae, first described by Régimbart in 1895. The genus comprises approximately 30 described species distributed primarily in the Americas, with records from North America through Central America to northern South America. These small diving beetles inhabit freshwater environments and are members of the tribe Bidessini within the subfamily Hydroporinae. The genus was revised taxonomically by Young in 1990, who described numerous new species.
Coptotominae
Coptotominae is a small subfamily of predaceous diving beetles (family Dytiscidae) containing the single genus Coptotomus. The genus comprises approximately six described species distributed in North America and the Neotropics. These beetles are aquatic predators inhabiting freshwater environments. The subfamily was established by Branden in 1885 and represents a distinct lineage within the diverse diving beetle fauna.
Dytiscinae
predaceous diving beetles
Dytiscinae is a subfamily of predaceous diving beetles (family Dytiscidae) containing at least 20 genera and approximately 380 described species. Members are medium to large diving beetles found in aquatic habitats across most continents. The subfamily includes well-known genera such as Dytiscus, Cybister, Acilius, and Hydaticus. Species are predatory in both adult and larval stages, with larvae often called 'water tigers' for their voracious feeding habits.
Hydroporini
Hydroporini is a tribe of predaceous diving beetles in the family Dytiscidae, containing at least 730 described species. Members are primarily aquatic, inhabiting freshwater environments including streams, rivers, and groundwater systems. The tribe exhibits a broad geographic distribution spanning Australia, New Guinea, Europe, and other regions, with notable diversity hotspots in south-western Australia.
Matinae
Matinae is a subfamily of predaceous diving beetles within the family Dytiscidae. It contains at least 3 genera (Allomatus, Batrachomatus, and Matus) and approximately 10 described species. These beetles are aquatic predators found in freshwater habitats.
Vatellus
Vatellus is a genus of predaceous diving beetles in the family Dytiscidae, tribe Vatellini. The genus contains 15 described species distributed primarily in the Neotropical region, with most species described by K.B. Miller in 2005. Members are aquatic beetles adapted to freshwater habitats.