Colymbetes is a genus of beetles native to the Palearctic, including Europe, the Nearctic, the Near East and North Africa.
Agabus is a large genus of predatory aquatic beetles in the family Dytiscidae, proposed in 1817 by William Elford Leach and named after Agabus, an early follower of Christianity. The adult beetles are moderate-sized, 5 to 14 mm long. The genus is primarily Holarctic in distribution, with only a few species known from the Afrotropic and Neotropic realms. Three species of Agabus, namely A. clypealis, A. discicollis and A. hozgargantae are endangered according to the IUCN Red List. The division into subgenera is not widely accepted. However, a number of species groups are recognized after the works of David J. Larson and Anders N. Nilsson. The genus is probably polyphyletic or paraphyletic. In a recent study of mitochondrial DNA, Agabus was found paraphyletic with respect to several of the species groups of Platambus, a closely related genus in the tribe Agabini. Lately the taxonomy of the genus has been revised, and some groups of species were transferred from Agabussensu stricto to other genera in the tribe Agabini.
Gyrinus is a genus of small aquatic whirligig beetles in the family Gyrinidae native to the Palearctic, the Near East, the Nearctic and North Africa.
Hydroporus is a genus of water beetles native to the Palearctic, the Nearctic, the Near East, and North Africa. It contains the following species:
Neoporus is a genus of beetle in the family Dytiscidae. These are the predaceous diving beetles, a family of water beetles. Their larvae are commonly known as water tigers. Neoporus is one of over 160 genera in family Dytiscidae.
Ilybiosoma is a genus of beetles in the family Dytiscidae, containing the following species:
Sanfilippodytes is a genus of beetles in the family Dytiscidae, containing the following species:
Stictotarsus is a genus of beetles in the family Dytiscidae.
Laccornis is a genus of beetles in the family Dytiscidae, containing the following species:
Oreodytes scitulus is a species of predaceous diving beetle in the family Dytiscidae. It is found in North America.
Oreodytes sanmarkii is a species of predaceous diving beetle in the family Dytiscidae. It has a holarctic distribution, found in aquatic habitats in Europe, northern Asia, and North America. It has an affinity toward low-velocity currents and pebbly microhabitat substrates. It was described by Finnish entomologist Carl Reinhold Sahlberg in 1826.
Oreodytes snoqualmie is a species of predaceous diving beetle in the family Dytiscidae. It is found in North America.
Scelolyperus is a genus of skeletonizing leaf beetles in the family Chrysomelidae. There are more than 20 described species in Scelolyperus. They are found in North America, Mexico, and the Palaearctic.
Oreodytes picturatus is a species of predaceous diving beetle in the family Dytiscidae. It is found in North America.
Oreodytes abbreviatus is a species of predaceous diving beetle in the family Dytiscidae. It is found in North America.
Oreodytes quadrimaculatus is a species of predaceous diving beetle in the family Dytiscidae. It is found in North America.
Oreodytes laevis is a species of predaceous diving beetle in the family Dytiscidae. It is found in North America.
Oreodytes congruus is a species of predaceous diving beetle in the family Dytiscidae. It is found in North America.
Oreodytes obesus is a species of predaceous diving beetle in the family Dytiscidae. It is found in North America.
Oreodytes alaskanus is a species of predaceous diving beetle in the family Dytiscidae. It is found in North America.
