Stone runner
Stone runner | ||||||||||||
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Common stone runner ( Lithobius forficatus ) |
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Systematics | ||||||||||||
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Scientific name | ||||||||||||
Lithobiomorpha | ||||||||||||
Pocock , 1895 |
Stone walkers (Lithobiomorpha) are a class of centipedes (Chilopoda).
features
The stone runners have 15 leg-bearing segments in which a shorter and a longer back shield ( tergite ) alternate and thus the longer tergites collide in the middle of the trunk. The light sense organs are usually two point-shaped individual eyes ( ocelles ) arranged on the right and left of the head . Often the eyes also consist of several ocelles standing together in groups. Many species have no light sense organs at all. The hip joints of the terminal legs have glandular pores on the underside, from which a defensive secretion can be secreted. The arrangement of these pores is used as a determinant for some species.
Way of life
Stone runners live mainly under stones or bark, rotten wood or leaf litter. The ovoid of the stone runner has only 7 pairs of legs. The last pair of legs of the adult stone walker is used for defense.
species
The stone runners are divided into two families, the Henicopidae and the Lithobiidae . The former contain 20 genera worldwide and the latter 85.
In Central Europe, the Henicopidae have only one species, Lamyctes fulvicornis , while the Lithobiidae have numerous species. The best known species in Central Europe is the common stone runner ( Lithobius forficatus ).
supporting documents
- ↑ a b c d Mathias Schaefer (Ed.): Brohmer, Fauna von Deutschland: An identification book of our domestic animal world. 19th, revised. Edition, Quelle and Meyer, Heidelberg and Wiesbaden 1994; Pp. 185 ff. ISBN 3-494-01225-3 .
- ^ Henicopidae in the Global Biodiversity Information Facility.
- ^ Lithobiomorpha in the Global Biodiversity Information Facility.