Dytiscus is a Holarctic genus of predaceous diving beetles that usually live in wetlands and ponds. There are 26 species in this genus distributed in Europe, Asia, North Africa and North and Central America. They are predators that can reduce mosquito larvae.
Hygrotus is a genus of beetle in family Dytiscidae. It contains two subgenera and about 70 species, including:
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 Afrotropical and Neotropical 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.
Ilybius is a large genus of predatory aquatic beetles in the family Dytiscidae. The genus is native to the Palearctic, the Near East, the Nearctic, and North Africa. 70 species has been described from this genus:
Chrysolina is a large genus of leaf beetles in the subfamily Chrysomelinae. Most species are distributed in Europe, Asia and Africa with a small number of species inhabiting North America and introduced species in Australia.
Hydroporus is a genus of water beetles native to the Palearctic, the Nearctic, the Near East, and North Africa. It contains the following species:
Syneta is a genus of leaf beetles in the subfamily Synetinae. There are about 11 described species in Syneta. The genus is entirely holarctic in distribution, with species appearing in North America, Siberia, East Asia and Northern Europe.
Platynus is a genus of ground beetles in the family Carabidae. There are more than 180 described species in Platynus.
Rhizophagus is a genus of beetles in the family Monotomidae.
Smaragdina is a genus of short-horned leaf beetles belonging to the family Chrysomelidae, subfamily Cryptocephalinae.
Plateumaris is a genus of aquatic leaf beetles in the family Chrysomelidae. There are about 17 described species in Plateumaris.
Chlamisus, sometimes known as the cloaked warty leaf beetles, is a genus of warty leaf beetles in the family Chrysomelidae. There are more than 90 described species in Chlamisus.
Epaphius is a genus of beetles belonging to the family Carabidae.
