Noteridae
Noterus clavicornis
The banks wetland beetles ( Noteridae ) are a family of beetles dar.
Features
The beetles are one to 6.3 millimeters long and have an oval, streamlined, usually brown, black or translucent body of water beetles looks very similar to the. They differ from this family but through the hips of the rear pairs of legs, which are plate-shaped shaped to the rear and thereby cover the attachment of the posterior leg ring. Some species of water beetles look similar, but of these, they are distinguished by their threadlike sensors that have eleven members. All legs have five Tarsenglieder. When not all the types tarsi of the hind legs are covered with swimming hairs. The head of the animal is short and a little covered by the pronotum.
Way of life
Both the larvae and the imagoes live underwater. The beetles can swim well and move on, by rowing with its hind legs at the same time. The animals live in stagnant waters or rivers with slow flow. They usually take place between the roots of floating on the water surface plants, but also in the muddy banks and substrate at the bottom of the water. Larvae and beetles feed on dead animals and predatory, but they also eat plant parts.
Systematics ( Europe)
The banks wetland beetles are used worldwide with about 270 species occur in Europe, they are represented by only four species, of which two species live in Central Europe ( Noterus clavicornis, Noterus crassicornis ). The family was formerly known as subfamily of diving beetles ( Dytiscidae ) are considered, with which they are very closely related. Their main area of distribution are the tropics.
Subfamily Noterinae
- Big bank wet beetle ( Noterus clavicornis ) ( De Geer, 1774)
- Small banks wetland beetles ( Noterus crassicornis ) (OF Müller, 1776)
- Noterus laevis Sturm, 1834
- Canthydrus diophthalmus ( Reiche & Saulcy, 1855)