Drymus brunneus
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Drymus brunneus |
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| ( RF Sahlberg , 1848) |
Drymus brunneus is a bug fromthe Rhyparochromidae family .
features
The bugs are 3.6 to 5.4 millimeters long. The species of the genus are difficult to determine. In Drymus brunneus the splints ( tibia ) are missing long, upright hair and the rear part of the pronotum is brownish in color. The fore wings are visibly widened along the middle of the abdomen. Most adults are brachypter, so they have shortened wings. Fully winged, macroptere individuals are rarely found.
distribution and habitat
The species is distributed in western Palearctic and is only absent in the far north of northern and eastern Europe. In the east the distribution extends to Siberia and the Caucasus . It is widespread and frequent in Germany, although it becomes rarer towards the south and east. It is just as widespread in Austria and rises in the Alps to 1,300 meters above sea level. It is the most moisture-loving species of the genus and inhabits shady deciduous and coniferous forests, wet swamp and alluvial forests and, more rarely, humid, more open habitats such as moors or wet meadows. They can also be found on the banks of standing and flowing waters. Flooding of their habitat in winter does not seem to be a problem.
Way of life
The animals live very hidden in the damp, fungus-streaked soil litter and between mosses, but feed neither on fungi nor on mosses. They suckle on seeds of various herbaceous plants and trees, such as B. Birch ( Betula ) and Alder ( Alnus ). When the temperatures are favorable, the adults are also active in winter. In Central Europe there is usually one generation per year. The development cycle is seasonal, but not uniform, so that the oviposition takes place differently in different parts of the distribution area. The wintering takes place accordingly both as an imago and as an egg.
Individual evidence
- ↑ a b c d security guard: bugs. Volume 3, p. 105 f.
- ^ Drymus brunneus. British Bugs, accessed December 29, 2013 .
literature
- Ekkehard Wachmann , Albert Melber, Jürgen Deckert: Bugs. Volume 3: Pentatomomorpha I: Aradoidea (bark bugs), Lygaeoidea (ground bugs, etc.), Pyrrhocoroidea (fire bugs) and Coreoidea (edge bugs, etc.). (= The animal world of Germany and the adjacent parts of the sea according to their characteristics and their way of life . 78th part). Goecke & Evers, Keltern 2007, ISBN 978-3-937783-29-1 .
Web links
- Drymus brunneus near Fauna Europaea. Retrieved December 29, 2013