Adephaga

thumb|Image by Harold Maxwell-Lefroy - Adephaga The Adephaga (from Greek ἀδηφάγος, adephagos, "gluttonous") are a suborder of beetles, and with more than 40,000 recorded species in 10 families, the second-largest of the four beetle suborders. Members of this suborder are collectively known as adephagans. The largest family is Carabidae (ground beetles) which comprises most of the suborder with over 40,000 species. Adephaga also includes a variety of aquatic beetles, such as predaceous diving beetles and whirligig beetles.

The Trachypachidae (sometimes known as false ground beetles) are a family of beetles that generally resemble small ground beetles, but that are distinguished by the large coxae of their rearmost legs. There are only six known extant species in the family, with four species of Trachypachus found in northern Eurasia and northern North America, and two species of Systolosoma in Chile and Argentina. They were much more diverse in the past, with dozens of described species from the Mesozoic.

Aspidytidae is a family of aquatic beetles of the suborder Adephaga, described in 2002 from specimens in South Africa and China. There are only two known species in the family and these were originally described in the genus Aspidytes, but later the new genus Sinaspidytes was erected for the species found in China. The family can also be referred to by its trivial name cliff water beetles.

species of beetle

species of beetle

Colymbothetidae is an extinct family of beetles in the suborder Adephaga. Colymbothethis is known from larvae from the Upper Triassic of Kazakhstan. They probably belong to the Dytiscoidea.

species of beetle

species of beetle

species of insect

species of insect

species of beetle

species of insect

species of beetle

species of insect

Trachypachus is a genus of beetles in the family Trachypachidae that contains four described species. Below is a list of species:

species of insect

Parahygrobia natans is an extinct species of adephagan beetle. It is the only member of the genus Parahygrobia and family Parahygrobiidae. It is known only from larvae from the Late Jurassic of Russia. Cladistic analysis has placed it as the sister group to extant Hygrobiidae.

Aspidytes is a genus of aquatic beetles in the family Aspidytidae, first recorded in 2002 from specimens in South Africa. The genus contains the single species Aspidytes niobe. Originally a second species from China was placed in the same genus but has later been transferred to Sinaspidytes. The aquatic beetle is 6.5 - 7.2 mm long and lives in hygropetric habitats.

species of insect

Liadytidae is an extinct family of adephagan beetles. There are at least two genera and about seven described species in Liadytidae. They are known from the Early Jurassic to Early Cretaceous of Asia. They are members of the clade Dytiscoidea, and like other members of that group were adapted for aquatic life.

species of insect