Narrowwater beetle
| Narrowwater beetle | ||||||||||||
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Narrowwater beetle |
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| Systematics | ||||||||||||
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| Hydrochinae | ||||||||||||
| CG Thomson , 1859 |
The small water beetles (Hydrochinae) are a subfamily of the water beetles (Hydrophilidae).
features
These are small, two to 4.3 millimeters long, water-dwelling beetles that are elongated ( narrow water beetles ) and brown to black in color, sometimes with a metallic sheen. The spherical protruding eyes distinguish them from other water beetle species. Your middle and hind leg pairs are provided with only moderately trained swimming bristles. Like some other aquatic beetle species, they have stridulation organs .
Occurrence
Narrowwater beetles live in vegetation-rich, preferably stagnant bodies of water, and do not move particularly quickly there.
Systematics
The narrowwater beetle family is represented in Europe with around 285 species and is divided into four subfamilies with a total of 29 genera . The European genus Hydrochus was formerly part of the family long-sea beetles (Hydraenidae), but is now considered an independent family. Seven species are known in Central Europe and Germany.
The following list gives an overview of the genera represented in Europe.
- Helophorus
- Georissus
- Hydrochus
- Anacaena
- Berosus
- Chaetarthria
- Chasmogenus
- Crenitis
- Cymbiodyta
- Enochrus
- Helochares
- Hemisphaera
- Hydrobius
- Hydrochara
- Hydrophilus
- Laccobius
- Limnoxenus
- Paracymus
- Sternolophus
- Cercyon
- Coelostoma
- Cryptopleurum
- Dactylosternum
- Megasternum
- Oosternum
- Pachysternum
- Pelosoma
- Sphaeridium
- Spercheus
credentials
- ↑ Hydrophilidae. Fauna Europaea, Version 1.3, April 19, 2007 , accessed on July 27, 2007 .
literature
- Bernhard Klausnitzer : Beetles in and around the water. 2nd, revised edition. The new Brehm library, Volume 567. Westarp Sciences and Spectrum, Academic Publishing House, Magdeburg, Heidelberg, Berlin and Oxford 1996, ISBN 3-89432-478-3
- Jiři Zahradník, Irmgard Jung, Dieter Jung et al .: Käfer Central and Northwestern Europe , Parey Berlin 1985, ISBN 3-490-27118-1
- Edmund Reitter : Fauna Germanica - The beetles of the German Empire. Volume 2 p. 346, KG Lutz, Stuttgart 1909
- Edmund Reitter: Fauna Germanica - The beetles of the German Empire. 5 volumes, Stuttgart KG Lutz 1908–1916, digital library volume 134, Directmedia Publishing GmbH, Berlin 2006, ISBN 3-89853-534-7