Common pond runner
|Common pond runner|
Common pond runner ( Hydrometra stagnorum )
|( Linnaeus , 1758)|
The common pond runner ( Hydrometra stagnorum ), also called water rider or stilted foot , is a bug (Heteroptera) and belongs to the family of pond runner (Hydrometridae). The animals lead an amphibious way of life and walk around on the water in bank areas or on aquatic plants.
Features and way of life
The common pond runner reaches body lengths between 9 and 12.5 millimeters. The black or brown-black animals are elongated in body structure. The head is almost twice as long in front of the compound eyes as behind. The legs are extremely long in comparison to the body and allow walking on the surface of the water. The antennae are four-part. The underside of the body is equipped with small hairs so that water can run off. Most individuals are short-winged (brachypter); long-winged (macroptere) forms are rare, which is why the ability of the species to spread is severely restricted. In contrast to other representatives of the water striders i. w. S. ( Gerromorpha ), however, the animals can move around quite well on land and even cover longer distances. The animals feed exclusively on insects and other arthropods as predators .
Distribution and habitats
The common pond runner is widespread throughout Europe, the Mediterranean region and North Africa. To the east, its area extends into the Middle East and Central Asia. The animals live both in shallow bank areas of small still waters and on muddy ground in the reed belt of larger lakes. Since the species is comparatively undemanding, almost vegetation-free places near water or built-up banks are colonized by it.
- E. Wachmann , A. Melber, J. Deckert: Bugs . Volume 1: Dipsocoromorpha, Nepomorpha, Gerromorpha, Leptopodomorpha, Cimicomorpha (Part 1), revision of the bugs in Germany, Austria and German-speaking Switzerland, Goecke & Evers, Keltern 2006, pp. 64–65. ISBN 3-931374-49-1 .
- E. Wagner: Heteroptera Hemiptera. - In: Brohmer, P., P. Ehrmann, G. Ulmer (Hrsg.): Die Tierwelt Mitteleuropas. IV, 3 (Xa). - Leipzig 1959, 173 pp.