Colymbetes fuscus

Called Common pond swimmer, also Dark Pond Float

The common pond float ( Colymbetes fuscus ), also called Dark Pond swimmer, is a beetle of the family of diving beetles ( Dytiscidae ).

Features

The oval body is 16 to 17 millimeters long. The yellow-brown pronotum is angedunkelt extended at its center. The elytra are colored yellow. They have lateral grooves that are wavy black and fine and so are tightly that the elytra appear uniformly dark. The body bottom is colored black.

Occurrence

The common pond float inhabited Europe with the exception of the northernmost areas. Habitat of the species are mainly still water, but next to it is also to be found in rivers, brackish water and bogs. It is valid in Central Europe as often.

Way of life

The females lay in the spring of water plants from their eggs. Rarely oviposition in autumn takes place, in which the larvae then overwinter. The larvae usually live on aquatic plants and are predators. First, they feed on plankton organisms, later they also prey on tadpoles and larvae of insects. The adults can fly very well.