Spiders Scorpions:
Scorpions are true arthropods and belong with the spiders scorpions to the class of arachnids. But they are so distinctive in other characteristics that they are placed in an order all their own, that of Scorponida.
Scorpions do not occur in great number nor are they as widely distributed as the spiders scorpions. They are secretive in their habits and active only at night, so they are not commonly seen by man.Near relatives of spiders scorpions are scorpions, har-vestmen, mites, whip-scorpions and other land arachnids; more distant ones, the aquatic king crabs (Limulus, etc.) and the fossil eurypterids. Fossil spiders scorpions are found in the Rhynie Chert of the Devonian, were well developed in the Car¬boniferous, and occur abundantly in Baltic amber (Oligocene of Europe) and in Florissant shales (Oligocene in America).
See Also Trap-door Spiders Feed:
In the wild, trap-door spiders feed on a large variety of insects and other arthropods. All food must be alive. Give quantity of any available insects; also give sow bugs, pill bugs, other spiders. Trap door spiders do not forage for food; lie in wait at night with door slightly raised and grab prey as it crawls by. In captivity, teach speci¬men to feed before night by gently dragging food along close to trap door at same time each feeding. Water—Not as essential as to other spiders, but must be offered occasionally; use small, flat con¬tainer; place close as possible to trap door.damage nest; spider will not attempt to escape but will hold firmly to its door; collect a quantity of the surrounding soil as it will be needed in the captive habitat Trap Door: Doors on trap-door-spider tunnels vary according to the kind of spider making them; "wafer" type door covered with nothing more than silk; "cork" type is made of silk combined with soil; spider sits with door partially open and grasps any unwary in¬sect that comes along The trap-door spiders are hardy in captivity when their runnels are properly placed in soil and they are properly fed.
On The Other Hand See Regard Spiders Aversion:
Most modern Koples regard spiders aversion spiders with aversion because of :he cobwebs they spin and their reputed ven->mous properties. Shy creatures that rarely bite nan, spiders have venoms that produce small :ffect, for the most part, on warm-blooded ani-nals. Hematoxins and neurotoxins in the ven-ims of a very few species cause local and sys-emic symptoms of variable severity in man, more jrave in children and occasionally even causing leath. In temperate regions the only spiders to >e feared are the species of Latrodectus (q.v. ilack widows, etc.) which have an exclusively leurotoxic vaiom. In the tropics several other cinds are dangerous, notably the wolf spiders [Lycosa raptoria, etc.) of southern Brazil and he burrowing tarantulas (Atrax) of Australia. V serum has been prepared for the wolf spider lites, which quickly clears up the severe local esions.Spiders are divided into two tundamental groups or suborders, the Mygalomorphac, or mygalomorph spiders, and the Araneomorphae, the true spiders. Mygalomorph Spiders. — The mygalomorph spiders are more generalized than the true spiders and ancestral to them. Their chelicerae are paral¬lel with the long axis of the body and move up and down; and each fang pierces the prey from above, making similar parallel punctures. All retain two pairs of book lungs for respiratory organs.
