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Acilius (beetle)
''Acilius'' is a holarctic genus of diving beetles in the family Dytiscidae and typically has a life cycle that is univoltine. Despite the prevalence of some species, one species, ''A. duvergeri'', is listed as vulnerable on the IUCN Red List. Species The genus ''Acilius'' contains the following 13 extant species in 2 subgenera: Subgenus ''Acilius'': * ''Acilius abbreviatus'' Aubé, 1838 * ''Acilius athabascae'' Larson, 1975 * ''Acilius canaliculatus'' (Nicolai, 1822) * ''Acilius confusus'' Bergsten, 2006 * ''Acilius fraternus'' (Harris, 1828) * ''Acilius japonicus'' Brinck, 1939 * ''Acilius kishii'' Nakane, 1963 * ''Acilius mediatus'' (Say, 1823) * ''Acilius semisulcatus'' Aubé, 1838 * ''Acilius sinensis'' Peschet, 1915 * ''Acilius sulcatus'' (Carl Linnaeus, Linnaeus, 10th edition of Systema Naturae, 1758) * ''Acilius sylvanus'' Hilsenhoff, 1975 Subgenus ''Homoelytrus'' * ''Acilius duvergeri'' Gobert, 1874 Extinct species These three extinct species are known only from fossils ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holarctic
The Holarctic realm is a biogeographic realm that comprises the majority of habitats found throughout the continents in the Northern Hemisphere. It corresponds to the floristic Boreal Kingdom. It includes both the Nearctic zoogeographical region (which covers most of North America), and Alfred Wallace's Palearctic zoogeographical region (which covers North Africa, and all of Eurasia except for Southeast Asia, the Indian subcontinent, the southern Arabian Peninsula). These regions are further subdivided into a variety of ecoregions. Many ecosystems and the animal and plant communities that depend on them extend across a number of continents and cover large portions of the Holarctic realm. This continuity is the result of those regions’ shared glacial history. Major ecosystems Within the Holarctic realm, there are a variety of ecosystems. The type of ecosystem found in a given area depends on its latitude and the local geography. In the far north, a band of Arctic tun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
