Document Type : Original Article

Authors

1 Research Center for Health Sciences, Institute of Health, Department of Medical Entomology and Vector Control, Shiraz University of Medical Sciences, Shiraz, Iran

2 Department of Epidemiology, Ilam University of Medical Sciences, Ilam, Iran

Abstract

Background: Scorpions are a group of poisonous invertebrates that are widely distributed in the Middle East countries including Iran. They cause serious injuries and death to humans and domestic animals in Fars province. These arthropods are settled in subtropical regions of the province.
Methods: In this study, a total of 35 out of 430 Mesobuthus eupeus, including 15 males and 20 females, were selected, and then their major morphometric characteristics including the whole body length, pedipalp length, length and width of carapace, leg segments, abdomen, and tail segments, as well as the size of the poison gland, pectinal organ length, and pectinal tooth count were measured using a Collis-Vernier caliper scale.
Results: The measurements of different body parts were bigger in females than in males, except that pectinal tooth count in males (26.93mm±.88) was greater than that in females (22.20±1.00). The number of simple eyes on each side did not differ between males and females. Other features showed  to be higher for females than  males.
Conclusion: The results of the main morphometric features  showed that the mean scores of the characters, except for the pectinal tooth count, in female M. eupeus species were bigger than those in male ones. The findings of this study are suggested to be  used to provide a valid identification key for scorpions in Iran.

Keywords

  1. Stockmann R, Ythier E. Scorpions of the world. N.E.P. Editions, France, 2010; 978-2-913688-11-7.
  2. Zayerzadeh E, Koohi MK, Zare Mirakabadi A, Purkabireh M, Kassaaian SE, Rabbani SH, et al. Cardiopulmonary complications induced by Iranian Mesobuthus eupeus scorpion venom in anesthetized rabbits. Journal of Venomous Animals and Toxins including Tropical Diseases. 2010;16(1):46-59.
  3. Dehghani R, Kassiri H. A Checklist of Scorpions in Iran (By 2017). Asian J Pharm. 2018;12(3): S880.
  4. Zargan J, Tirgari S, Thahemejad K, Lotfi H, Farahmandzad AR. Study of fauna in Abomosa, great & small Thonbs and Hengam island of the Persian Gulf. Iran South Med J.      2003; 1(6): 20-24.
  5. Dawn HG, Kirk AS, Carl O, Paul B. Scorpions Cooperative Extension, College of Agriculture & Life Sciences, The University of Arizona, 2003.
  6. Chowell G, Díaz-Dueñas P, Bustos-Saldaña R, Mireles AA, Fet V. Epidemiological and clinical characteristics of scorpionism in Colima, Mexico (2000–2001). Toxicon. 2006; 47(7): 753-8.
  7. Mohammadpour Dounighi N, Eskandari R, Avadi MR, Zolfagharian H, Mir Mohammad Sadeghi A, Rezayat M. Preparation and in vitro characterization of chitosan nanoparticles containing Mesobuthus eupeus scorpion venom as an antigen delivery system. Journal of Venomous Animals and Toxins Including Tropical Diseases. 2012; 18(1): 44-52.
  8. Khaghani R, Tirgari S, Omrani Gh, Rafinejad J, Mosavi Ivanaki A. Faunistic study biodiversity of scorpions of island Kish. J Arthropod-Borne Dis. 2006; 3(1): 46–52.
  9. Pipelzadeh MH, Jalali A, Taraz M, Pourabbas R, Zaremirakabadi A. An epidemiological and a clinical study on scorpionism by the Iranian scorpion Hemiscorpius lepturus. Toxicon. 2007;50(7):984-92.
  10. Masihipour B, Navidpour S, Albooshoke S. Parametric values of Hemiscorpius species (Peters, 1861) (Scorpions: Hemiscorpiidae) from Southwestern Iran. J Exp Zoolog India. 2010; 13(2): 487–90.
  11. Mirshamsi O, Sari A, Elahi E, Hosseinie S. Mesobuthus eupeus (Scorpiones: Buthidae) from Iran: A polytypic species complex. Zootaxa. 2011; 24;2929(1):1-21.
  12. Azizi K, Trgari S, Rashti SMA. Faunstic study of scorpions in Shiraz and investigation on their fecundity. Armaghane-danesh, J Yasuj Univ Med Sci. 1998; 10-9(3):23-32.
  13. Azizi K, Shahraki Gh, Omrani SM. Determination of the fauna and sex ratio of scorpions from villages and suburbs of Kohgiloyeh and Boyerahmad province in 1379. Armaghane-danesh, J Yasuj Univ Med Sci. 2001;22-21(6):6-13.
  14. Ebrahimi M, Azizi K, Moemenbellah-Fard Md, Fakoorziba MR, Soltani A. Morphometry indices of the black fat-tailed scorpion, Androctonus crassicauda (Scorpiones, Buthidae), from Fars province, southern Iran. J Entomol. 2015;; 12(1): 39-47.
  15. Navidpour S, Masihipour B. Study of morphometrical values of Iranobuthus krali (Scorpiones: Buthidae) from Fars province, Southern Iran. Arch Razi. 2009; 64(2): 97-100.
  16. Dehghani R, Valaei N. Calssification and their diagnostic clue. Feyz, Kashan Univ Med Sci Health Serv. 2005; 32(8): 73-92.
  17. Karatas A., Karatas A. Mesobuthus eupeus (C.L.Koch, 1839) (Scorpiones: Buthidae) in Turkey. Euscorpius. 2003;7: 1-6.
  18. Kazemi SM, Sabatier JM. Venoms of Iranian Scorpions (Arachnida, Scorpiones) and Their Potential for Drug Discover. Molecules. 2019; 24: 2670. doi:10.3390/molecules24142670.
  19. Dehghani R, Charkhloo E, Seyyedi-Bidgoli N, Chimehi E, Ghavami-Ghameshlo M. A Review on Scorpionism in Iran. J Arthropod-Borne Dis. 2018; 12(4): 325-333.
  20. Firoozfar F, Saghafipour A, Jesr N. Scorpions and Their Human Mortality Report in Iran: A Review Article. Iran J Public Health 2019; 48(12): 2140–2153.
  21. Dehghani R, Kassiri H. A Checklist of Scorpions in Iran (By 2017). Asian J Pharm. 2018; 12 (3): S880.
  22.  Zayerzadeh E, Zare Mirakabadi A, Koohi MK. Biochemical and histopathological study of Mesobuthus eupeus scorpion venom in the experimental rabbits. Arch. Razi Inst. 2011; 66 (2): 133-138.