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Pseudoscorpions, also known as false scorpions or book scorpions, [1] are small, scorpion-like arachnids belonging to the order Pseudoscorpiones, also known as Pseudoscorpionida or Chelonethida. Pseudoscorpions are generally beneficial to humans because they prey on clothes moth larvae, carpet beetle larvae, booklice , ants , mites , and small ...
Centruroides gracilis is a species of scorpion in the family Buthidae, the bark scorpions. Its common names include Florida bark scorpion , brown bark scorpion , and slender brown scorpion . [ 1 ] [ 2 ] In Cuba it is known as alacran prieto ("dusky scorpion") and alacran azul ("blue scorpion"). [ 1 ]
The Arizona bark scorpion (Centruroides sculpturatus, once included in Centruroides exilicauda) is a small light brown scorpion common to the Sonoran Desert in the southwestern United States and northwestern Mexico. An adult male can reach 8 centimetres (3.1 in) of body length, while a female is slightly smaller, with a maximum length of 7 ...
A striped scorpion hiding among rocks at Taum Sauk Mountain State Park. A medium-sized scorpion that is rarely longer than 70 mm (up to around 2 3/4 in), the striped bark scorpion is a uniform pale-yellow scorpion that can be identified by two dark, longitudinal stripes on its carapace, with a dark triangle above the ocular tubercle.
Centruroides limbatus is a relatively large scorpion and grows up to 110 mm in length. It is a polymorphic species that comes in a wide range of colors. Typically they have yellowish bodies with a contrasting blackish color on chelicera, the fingers of the pedipalps, the fifth segment of the tail, and the cephalothorax.
Despite repeated pairings of light and shock the animals did not learn to avoid the shock by tail-flicking in response to light. Curiously, when the animals that had experienced shocks whilst facing away from the safe area were subsequently tested facing towards the safe area they showed a very rapid avoidance of the shock upon the onset of the ...
Symptoms such as cerebellar ataxia, dysdiadochokinesia, dysmetria, dysarthria, dyslalia, nausea and vomiting where reported to last for up to two days. Some patients presented myoclonus and fasciculations. Two had intense rhabdomyolysis and acute kidney injury. [8]
Sensory hairs cover the pincers and tail, enabling the emperor scorpion to detect prey through vibrations in the air and ground. [5] When gravid (pregnant), the body of a female expands to expose the whitish membranes connecting the segments. The emperor scorpion fluoresces greenish-blue under ultra-violet light. [6] [7]