|of pseudo scorpios|
the pseudo scorpios (Pseudoscorpiones) are an order that Kieferklauenträger and at the same time the Arachnids (Arachnida). About 3,000 kinds are world-wide well-known, which reach body lengths of only two to seven millimeters, about 100 kinds are well-known also from Central Europe.
Table of contents
way of life of the pseudo scorpios
of pseudo scorpios are particularly at the soil in the leaves edition as well as in MOO padding and mushroom mats. They seem to the seacoast (stone coasts in near all land habitats, including, for example the largest kind Garypus beauvoisie) as well as in human dwellings (Book scorpio (Chelifer of cancroides)). Some kinds leave themselves from flies, beetles or other large insects transport (Phoresie), in order to find new Habitate. Some kinds are coupled directly with specific kinds of beetle, under their Flügeldecken them particularly live and in the Tropicsalso pair themselves.
Like nearly all Arachnids also the pseudo scorpios of others, such as Springschwänzen , live smaller Gliederfüssern which seize them with the Pedipalpenscheren. At the shears point Giftdrüsen flow with the pseudo scorpios, with whose assistance they kill the victims. Kinds with large shears tear their upA hole into the body covering its victims bite and exhaust booty, smaller kinds.
building of the pseudo scorpios
the figure of the pseudo scorpios reminds of that of the scorpios, particularly due to the Pedipalpen equipped with large shears, here with remarkableSensory hairs (Trichobotrien) are provided. Into these shears also poison nozzles flow with most kinds. Differently than with the scorpios there is however no divided abdomen (Opisthosoma). This sets directly to the front body (Prosoma), without an abdomen handle, like itwith the Web spiders occurs. The Kieferklaue (Chelicere) of the pseudo scorpios is zweigliedrig and forms small shears, a characteristic, which these animals with the roller spiders divide. Into these frequently Spinndrüsen flow.
reproduction and development
the sperm cells transmission effected via gestielte sperm cells packages (Spermatophoren), which are set off from the males on the substrate. With some kinds the males set these packages off simply on the soil, without presence female, the admission via a female effected coincidentally. Other kinds accomplish a “mating dance” similarly that of the scorpiosand the females attract over odoriferous substances (pheromones).
The oviposition effected in particularly gesponnenen breeding chambers. The female in a separated Brutsack at the genital opening with itself carries and nourishes the eggs it over a secretion of the ovaries. After slipping are the Nymphen free-living, after three striking doing gene is sex ripe the animals. For the Häutung spiders itself the animals own skin chambers.
to systematics of the pseudo scorpios
although pseudo scorpios the scorpios, are not they are outwardly quite similar not more near to these related. Their next relatives are obviousthe roller spiders, with which they divide the homogeneous Chelicere as well as the structure of their trachea system.
The Central European kinds of the pseudo scorpios belong to the following families on (with examples):
- Chthonius of ischnocheles
- Chthonius tetrachelatus
- MOO scorpio - Neobisium muscorum
- Microbisium brevifemoratum
- Cheiridium museorum
- Apocheirdium ferum
- Pselaphochernes of scorpioides
- Lasiochernes pilosus
- Dendrochernes cyrneus
- Chernes of cimicoides
- Dinocheires panzeri
- Allochernes wideri
- Dactylochelifer latreillei
- Withius piger
- book scorpio - Chelifer of cancroides