Spotted snarrel
| Spotted snarrel | ||||||||||||
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Spotted snarrel |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Bryodemella tuberculata | ||||||||||||
| ( Fabricius , 1775) |
The spotted snare insect ( Bryodemella tuberculata ) is a species from the family of field locusts (Acrididae).
features
The animals reach a length of 26 to 31 millimeters (males) or 29 to 39 millimeters (females) and are among the largest and most impressive grasshoppers in Central Europe. They have an inconspicuous appearance and a gray, brown, blackish or greenish basic color. The forewings show two clear light spots, some of which are also extended to indicated bands. The hind wings are widened fan-shaped, especially in the males. They are pink to reddish on half of the base, the remaining part and also the front first fan link are brown in color. Every second longitudinal artery is more pronounced and also clearly recognizable in the corresponding colors. The pronotum is wrinkled and has a weak, double interrupted keel. The rails (tibiae) of the hind legs are colored yellow.
Occurrence
The animals are found in Central and Northern Europe. They colonize sparsely vegetated, sandy heaths as well as scree areas on mountain rivers and streams. In Germany, the species has been extinct in the northern heathland areas for around 50 years, in the south individual unobstructed river banks are still populated, but these are severely impaired by recreational sports, which will probably lead to the extinction of the species in Germany. In the rest of Central Europe, too, populations are strongly declining and endangered. The adults can be found from July or August to September.
Way of life
The species feeds on phytophagus . The males in particular are excellent at flying and can travel up to 50 meters. The females fly shorter. In flight, both sexes produce a snarling sound that is significantly softer than that of the red-winged snare insect ( Psophus stridulus ). The flight can also take place without this sound. During courtship, the female sits on the ground while the male flies around it, snarling.
Hazard and protection
- Red list FRG: 1 (threatened with extinction).
credentials
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 .
Individual evidence
- ↑ Federal Agency for Nature Conservation (Ed.): Red List of Endangered Animals in Germany. Landwirtschaftsverlag, Münster 1998, ISBN 978-3-896-24110-8