Stenus ampliventris
| Stenus ampliventris | ||||||||||||
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| Scientific name | ||||||||||||
| Stenus ampliventris | ||||||||||||
| J. Sahlberg , 1890 |
Stenus ampliventris is a beetle from the family of the short-winged (Staphylinidae).
features
The beetles reach a body length of 3 to 4 millimeters. The wings , the legs and the rest of the body of the animals are colored black. Only the first link of the jaw probe is light, the rest are always black. The puncture of the wing is always separated. A weak microstructuring can be seen between the individual points.
The species is very similar to a number of other European Stenus species. An important distinguishing feature is the dense, but not wrinkled (wrinkled) puncturing on the upper side.
Occurrence and way of life
The animals occur in the Palearctic , it is considered a West Siberian taiga species with relict occurrences as far as southern and central Europe. The northern distribution extends to the Arctic Circle. The species is very rare in Central and Southern Europe. The animals colonize bogs and swamps and live there near sedge bulbs , in which they overwinter. In Germany, only two occurrences from Brandenburg ( Schorfheide and Dahme-Seen-Area) are currently known. The species is classified as an Ice Age relic species due to its attachment to moors.
Taxonomy
The species was first described by the Finnish entomologist Johan Reinhold (John) Sahlberg after specimens from a swamp area near Helsinki. The Stenus wagneri L. Benick , found in Brandenburg in 1917, is synonymous with it, as the coleopterologist Volker Puthz found out in 1991, and only then was the species detected for the first time in Germany.
swell
literature
- John Sahlberg (1890): Nya finska Staphylinider. Meddelanden af Societas pro Fauna et Flora Fennica 17: 7-13. Full text at archive.org
- J. Esser (2014): Sixth addendum to the directory of beetles (Coleoptera) in Brandenburg and Berlin. - Märkische Entomologische Nachrichten 16 (2): 203–215.
- A. Horion : Faunistics of the Central European Beetles Volume IX: Staphylinidae 1st part: Micropeplinae to Euaesthetinae, Ph.CW Schmidt publishing house, Neustadt ad Aisch, 1963.
- V. Puthz (1991): What is Stenus wagneri L. Benick? - or: The last Central European nut cracked at Stenus ! (Coleoptera, Staphylinidae) 224. Contribution to the knowledge of the stenins. - Entomological sheets for the biology and systematics of the beetles 87: 149–164.
- H. Joy, KW Harde, GA Lohse : The Beetles of Central Europe. Volume 4. Staphylinidae I (Micropeplinae to Tachyporinae)., Goecke & Evers Verlag, Krefeld, 1964.
- Tobias Mainda (2018): Evidence of Stenus species in the area around Chorin, Brandenburg (Coleoptera; Staphylinidae). Märkische Entomologische Nachrichten 20 (1): 97-107.