| Acneus | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Coleoptera |
| Family: | Psephenidae |
| Subfamily: | Eubriinae |
| Genus: | Acneus Horn, 1880 |
Acneus is a genus of water penny beetles in the family Psephenidae. There are four described species in Acneus. [1] [2] [3]
These four species belong to the genus Acneus:
Water-penny beetles are a family of 272 species 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.
Eubriinae is an aquatic beetle subfamily in the family Psephenidae.
Psephenus herricki is a species of water penny beetle in the family Psephenidae. It is found in eastern North America.
Aphorista is a genus of handsome fungus beetles in the family Endomychidae. There are at least four described species in Aphorista.
Dicranopselaphus is a genus of water-penny beetles in the family Psephenidae. There are over 40 described species in Dicranopselaphus, distributed in Asia and North America.
Ectopria leechi is a species of water penny beetle in the family Psephenidae. It is found in North America.
Ectopria is a genus of water penny beetles in the family Psephenidae. There are about nine described species in Ectopria.
Acneus quadrimaculatus is a species of water penny beetle in the family Psephenidae. It is found in North America.
Ordobrevia is a genus of riffle beetles in the family Elmidae. There are about 11 described species in Ordobrevia.
Petalium bistriatum is a species of beetle in the family Ptinidae. It is found in North America.
Zaitzevia is a genus of riffle beetles in the family Elmidae. There are about 19 described species in Zaitzevia. The genus is named after the Russian entomologist Filipp Zaitsev.
Phymaphora is a genus of handsome fungus beetles in the family Endomychidae. There are at least two described species in Phymaphora.
Aphonus is a genus of North American rhinoceros beetles in the family Scarabaeidae. There are about six described species in Aphonus.
Apatides is a genus of horned powder-post beetles in the family Bostrichidae. There are at least four described species in Apatides.
Eubrianax edwardsii is a species of water penny beetle in the family Psephenidae. It is found in North America.
Malthomethes is a genus of false soldier beetles in the family Omethidae, containing a single described species, Malthomethes oregonus.
Postelichus is a genus of long-toed water beetles in the family Dryopidae. There are at least four described species in Postelichus.
Acneus beeri is a species of water penny beetle in the family Psephenidae. It is known from a single female specimen that was collected east of Cascadia, Oregon in July 1940.
Acneus burnelli is a species of water penny beetle in the family Psephenidae. It was described from a single male specimen that was collected southwest of Powers, Oregon in July 1960 by B. B. Burnell.
Acneus oregonensis is a species of water penny beetle in the family Psephenidae. It is known to occur in Oregon and was described from a specimen collected at Multnomah Falls.
 | This Elateriformia-related article is a stub. You can help Wikipedia by expanding it. |