Androctonus crassicauda

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Arabian fat-tailed scorpion
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Class: Arachnida
Order: Scorpiones
Family: Buthidae
Genus: Androctonus
Species:
A. crassicauda
Binomial name
Androctonus crassicauda
(Olivier, 1807)

Androctonus crassicauda, the Arabian fat-tailed scorpion, is a species of extremely dangerous scorpion usually found in North Africa and the Middle East.

Description

Androctonus crassicauda is a generalist desert species,[1] an Old World scorpion.[2] Adults can vary in colour from a light brown to reddish to blackish-brown, to black. They can grow to over 10 centimetres (3.9 in) in length.[1][3]

Distribution and habitat

This species is found mainly in the Palaearctic region, in such countries as Turkey,[4] Iran, and other southwestern Asian nations.[5][1] A. crassicauda lives in the ruins of old, neglected structures,[1] and was considered a potential hazard for troops during the Persian Gulf conflict, though it was an unaggressive species that had no reports of stings.[3] It also occurs in margins of desert (arid, semi-arid) places and sometimes accumulated vegetation debris.[6]

Behavior

A nocturnal scorpion, it hides in crevices and under objects during the day, and at night hunts insects and other invertebrates, or small lizards.[6]

Venom

The venom is mainly composed of neurotoxins, cardiotoxins, and possibly myotoxins. Victims of the sting have reported local effects (intense pain, redness and swelling). Systemic effects include heart malfunctions, remote internal bleeding, visual disturbance, and respiratory problems. The venom is very powerful and considered among the most potent among scorpions, and is known to cause human death.[7] Deaths mostly occur with respiratory arrest, heart failure, and shock.[6] The LD50 for this species is 0.08 mg/kg (IV) and 0.40 mg/kg (SC).[8]

Antivenom

Antivenom produced by this species has been used in Turkey to treat all scorpion stings since 1942.[2]

References

  1. ^ a b c d "Euscorpius" (PDF). Sciene.marshall.edu. Retrieved 2011-12-05.
  2. ^ a b "Dear Editor" (PDF). Archived from the original (PDF) on 2010-06-10. Retrieved 2011-12-05.
  3. ^ a b "Archived copy" (PDF). Archived from the original (PDF) on 2011-10-02. Retrieved 2011-12-05.{{cite web}}: CS1 maint: archived copy as title (link)
  4. ^ "Euscorpius" (PDF). Sciene.marshall.edu. Retrieved 2011-12-05.
  5. ^ "WRBU Scorpion Identification". Wrbu.si.edu. Archived from the original on 2012-02-04. Retrieved 2011-12-05.
  6. ^ a b c "Living Hazards Database (LHD) – Search by Scientific Name" (PDF). Acq.osd.mil. Archived from the original (PDF) on 2 July 2017. Retrieved 16 March 2022.
  7. ^ Abd El-Aziz, F. E.; El Shehaby, D. M.; Elghazally, S. A.; Hetta, H. F. (2019). "Toxicological and epidemiological studies of scorpion sting cases and morphological characterization of scorpions (Leiurusquin questriatus and Androctonus crassicauda) in Luxor, Egypt =27 June 2023". NCBI. 6: 329–335. doi:10.1016/j.toxrep.2019.03.004. PMC 6479097. PMID 31049294.
  8. ^ Wilcox, Christie (2016-08-09). Venomous: How Earth's Deadliest Creatures Mastered Biochemistry. Farrar, Straus and Giroux. ISBN 978-0-374-71221-1.


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