Red-winged snare insect

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Red-winged snatcher
Red-winged snarrhatch (Psophus stridulus), male

Red-winged snarrhatch ( Psophus stridulus ), male

Systematics
Order : Grasshoppers (Orthoptera)
Subordination : Short-antennae terrors (Caelifera)
Family : Field locusts (Acrididae)
Subfamily : Wasteland Horror (Oedipodinae)
Genre : Psophus
Type : Red-winged snatcher
Scientific name
Psophus stridulus
( Linnaeus , 1758)
Red-winged snare insect in flight
Red-winged snare insect, female, in the habitat on the Swabian Alb.
Snarling noise

The red-winged snare insect ( Psophus stridulus ) is a species from the family of field locusts (Acrididae) in the order of the short-antennae terrors (Caelifera).

features

The males are 23 to 25 millimeters long, the females 26 to 40 millimeters. The females are yellow-brown or gray in color and have a somewhat more plump build than the almost black males. These are fully winged, but the females only have shortened wings. The fore wings are the same color as the body, the hind wings are bright red except for their tips, which are black. You can see these well during the flight, which is a certain risk of confusion with the red-winged wasteland cricket ( Oedipoda germanica ). However, the two species can be distinguished by the fact that the red of the hind wings is more extensive in the snares and that the forewings lack the broad, light-colored transverse bands. Also, the snare Rotflügelige Schrecke has, on the top of the neck shield a high, continuous back keel, which has on both sides a small indentation.

Occurrence

The red-winged snare insect occurs in central and southern Europe . It lives mainly in dry and stony areas, such as dry grass with favorable temperatures . It is not uncommon to find the animals at heights of around 2,000 meters. The species is already extinct in some federal states of Germany , such as Hesse , Lower Saxony and Schleswig-Holstein , it is only found in Brandenburg , Bavaria and Baden-Württemberg , where their populations are sharply declining. Older larvae and sexually mature individuals of the species can be found from July to October.

Way of life

The animals produce a clattering snarling with their hind wings, which, together with the surprisingly recognizable red hind wings, serves to deter predators. In males, it is also part of the complicated courtship ritual . The sound is not produced at low temperatures and repeated startling. Females also snarle while seated. After mating, the female lays the eggs in packets in the ground, and the larvae hatch in the following early summer .

Hazard and protection

credentials

  1. ↑ R. Höhnen, R. Klatt: Provisional distribution atlas of the grasshoppers of Brandenburg. In: Märkische Entomologische Nachrichten. 1 (2000), ISSN  1438-9665 , pp. 1-72.
  2. ↑ Federal Agency for Nature Conservation (Ed.): Red List of Endangered Animals in Germany. Landwirtschaftsverlag, Münster 1998, ISBN 978-3-89624-110-8

literature

  • Heiko Bellmann : Der Kosmos Heuschreckenführer, The species of Central Europe safely determine , Franckh-Kosmos Verlag GmbH & Co KG, Stuttgart 2006, ISBN 3-440-10447-8 .
  • Reichholf-Riehm, Helgard: Insects; Munich, 1984

Web links

Commons : Red-winged Snarrschrecke  - Album with pictures, videos and audio files