Acneus Beeri

	Acneus Beeri ''Acneus'' is a genus of water penny beetles in the family Psephenidae Water-penny beetles are a family (the Psephenidae) of 272 species (in 35 genera) of aquatic beetles found on all continents except Antarctica, in both tropical and temperate areas. The young, which live in water, resemble tiny pennies. The larv .... There are at least four described species in ''Acneus''. Species These four species belong to the genus ''Acneus'': * '' Acneus beeri'' Hatch, 1961 * '' Acneus burnelli'' (Fender, 1962) * '' Acneus oregonensis'' Fender, 1951 * '' Acneus quadrimaculatus'' Horn, 1880 References Further reading * * Byrrhoidea Articles created by Qbugbot {{Elateriformia-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Psephenidae Water-penny beetles are a family (the Psephenidae) of 272 species (in 35 genera) of aquatic beetles found on all continents except Antarctica, in both tropical and temperate areas. The young, which live in water, resemble tiny pennies. The larvae feed – usually nocturnally – on algae on rock surfaces. The presence of water-penny larvae in a stream can be used as a test for the quality of the water, as they are pollution-sensitive. They cannot live in habitats where rocks acquire a thick layer of algae, fungi, or inorganic sediment. Therefore, their presence along with other diverse phyla signifies good-quality water. They are around 6 to 10 millimeters in length. A water-penny larva's shell is oval-shaped to almost circular and is commonly a copper color, which explains the name, 'water-penny'. Water-pennies obtain oxygen through their membrane and through feathery gills located at the base of the abdomen. They are typically found in riffles in streams with a moderate to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Acneus Beeri ''Acneus'' is a genus of water penny beetles in the family Psephenidae Water-penny beetles are a family (the Psephenidae) of 272 species (in 35 genera) of aquatic beetles found on all continents except Antarctica, in both tropical and temperate areas. The young, which live in water, resemble tiny pennies. The larv .... There are at least four described species in ''Acneus''. Species These four species belong to the genus ''Acneus'': * '' Acneus beeri'' Hatch, 1961 * '' Acneus burnelli'' (Fender, 1962) * '' Acneus oregonensis'' Fender, 1951 * '' Acneus quadrimaculatus'' Horn, 1880 References Further reading * * Byrrhoidea Articles created by Qbugbot {{Elateriformia-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Acneus Burnelli ''Acneus'' is a genus of water penny beetles in the family Psephenidae. There are at least four described species in ''Acneus''. Species These four species belong to the genus ''Acneus'': * ''Acneus beeri ''Acneus'' is a genus of water penny beetles in the family Psephenidae Water-penny beetles are a family (the Psephenidae) of 272 species (in 35 genera) of aquatic beetles found on all continents except Antarctica, in both tropical and temper ...'' Hatch, 1961 * '' Acneus burnelli'' (Fender, 1962) * '' Acneus oregonensis'' Fender, 1951 * '' Acneus quadrimaculatus'' Horn, 1880 References Further reading * * Byrrhoidea Articles created by Qbugbot {{Elateriformia-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Acneus Oregonensis ''Acneus'' is a genus of water penny beetles in the family Psephenidae. There are at least four described species in ''Acneus''. Species These four species belong to the genus ''Acneus'': * ''Acneus beeri'' Hatch, 1961 * ''Acneus burnelli ''Acneus'' is a genus of water penny beetles in the family Psephenidae. There are at least four described species in ''Acneus''. Species These four species belong to the genus ''Acneus'': * ''Acneus beeri ''Acneus'' is a genus of water penny ...'' (Fender, 1962) * '' Acneus oregonensis'' Fender, 1951 * '' Acneus quadrimaculatus'' Horn, 1880 References Further reading * * Byrrhoidea Articles created by Qbugbot {{Elateriformia-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Acneus Quadrimaculatus ''Acneus quadrimaculatus'' is a species of water penny beetle in the family Psephenidae. It is found in North America North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Car .... References Further reading * * Byrrhoidea Articles created by Qbugbot Beetles described in 1880 {{Elateriformia-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Byrrhoidea Byrrhoidea is a superfamily of beetles belonging to Elateriformia that includes several families which are either aquatic or associated with a semi-aquatic habitat. Other than the superfamily Hydrophiloidea, most of the remaining Polyphagan beetles which are aquatic are in this superfamily. Description Adults of many Byrrhoidea have exocone eyes (with expanded corneal lens). The anterior edge of the scutellar shield is often abruptly elevated (except in Psephenidae and Cneoglossidae). A variety of byrrhoids have the first three abdominal ventrites solidly fused together. Larvae of most Limnichiidae have one pair of anal hooks on the tenth abdominal segment, while Cneoglossidae and Ptilodactylidae have three or more hooks on each side of this segment. Larvae of Lutrochidae and Elmidae, as well as the limnichiid genus ''Hyphalus'', have anal gill tufts. Almost all byrrhoid larvae have anterior abdominal spiracles that are biforous (or bilabiate) in shape. The degree of wing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]