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Vinegaroons Live Insects - USMantis

Vinegaroons

$30.00

Thelyphonida is an arachnid order comprising invertebrates commonly known as whip scorpions or vinegaroons. They are often called uropygids in the scientific community based on an alternative name for the order, Uropygi.

Thelyphonida is an arachnid order comprising invertebrates commonly known as whip scorpions or vinegaroons (also spelled vinegarroons and vinegarones). They are often called uropygids in the scientific community based on an alternative name for the order, Uropygi (which may then also include the order Schizomida). The name "whip scorpion" refers to their resemblance to true scorpions and possession of a whiplike tail. "Vinegaroon" is based on their ability when attacked to discharge an offensive liquid which contains acetic acid, producing a vinegar-like smell. these are wonderful class projects as they do not contain venom though emit a vinegar smell which is harmless

Description:

Whip scorpions range from 25 to 85 mm (1.0 to 3.3 in) in length, with most species having a body no longer than 30 mm (1.2 in); the largest species, of the genus Mastigoproctus, reaching 85 mm (3.3 in). Because of their legs, claws, and "whip", though, they can appear much larger.
Like the related orders Schizomida, Amblypygi, and Solifugae, the vinegaroons use only six legs for walking, with the first two legs serving as antennae-like sensory organs. All species also have very large scorpion-like pedipalps (pincers) but there is an additional large spine on each palpal tibia. They have one pair of eyes at the front of the cephalothorax and three on each side of the head, a pattern also found in scorpions. Vinegaroons have no venom glands, but they have glands near the rear of their abdomen that can spray a combination of acetic acid and caprylic acid when they are bothered. The acetic acid gives this spray a vinegar-like smell, giving rise to the common name vinegaroon.

Behavior:

Vinegaroons are carnivorous, nocturnal hunters feeding mostly on insects, millipedes, scorpions, and terrestrial isopods [9] but sometimes on worms and slugs. Mastigoproctus sometimes preys on small vertebrates.[9] The prey is crushed between special teeth on the inside of the trochanters (the second segment of the "legs") of the front appendages. They are valuable in controlling the population of cockroaches and crickets.

Males secrete a spermatophore (a united mass of sperm), which is transferred to the female following courtship behaviour, in which the male holds the ends of the female's first legs in his chelicerae. The spermatophore is deposited on the ground and picked up by the female using her genital area. In some genera, the male then uses his pedipalps to push the spermatophore into her body. After a few months the female will dig a large burrow and seal herself inside. Up to 40 eggs are extruded, within a membranous broodsac that preserves moisture and remains attached to the genital operculum and the fifth segment of the mother's ventral opisthosoma. The female refuses to eat and holds her opisthosoma in an upward arch so the broodsac does not touch the ground for the next few months as the eggs develop into postembryos. Appendages become visible.[10] The white young that hatch from the postembryos climb onto their mother's back and attach themselves there with special suckers. After the first molt, they look like miniature adults but with bright red palps, and leave the burrow. The mother may live up to two more years. The young grow slowly, going through four molts in about four years before reaching adulthood. They live for up to another four years.

Habitat
Whip scorpions are found in tropical and subtropical areas excluding Europe and Australia. Also, only a single species is known from Africa: Etienneus africanus, probably a Gondwana relict endemic to Senegal, the Gambia and Guinea-Bissau. They usually dig underground burrows with their pedipalps, to which they transport their prey. They may also burrow under logs, rotting wood, rocks, and other natural debris. They prefer humid, dark places and avoid light. Mastigoproctus giganteus, the giant whip scorpion, is found in more arid areas, including Arizona and New Mexico.


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