تنوع گونه‌ای عقرب‌ها (Arachnida: Scorpiones) در شهرستان نهبندان، استان خراسان جنوبی

Studies related to the biology and biodiversity of scorpions in Iran are very limited. These studies should begin by identifying the habitats and fauna of scorpions in each region in the country and be completed by examining their biological and ecological characteristics. Without knowing the species diversity and seasonal spread of scorpions, adopting a method of preventing or treating scorpion stings cannot be successful. Considering that no comprehensive research has been done in for identification of scorpions in Nehbandan city in the south of South Khorasan province, as well as cases of scorpion stings, it seemed necessary to conduct this study. Sampling from different areas was done randomly with the help of UV light at night and direct observation during the day. In this study, 137 scorpion samples were collected from Nehbandan city. The collected samples were stored in 80% ethanol and examined after being transferred to the laboratory. Separation and identification of samples was done using valid identification keys and original descriptions. Five species belonging to five genera of the Buthidae family were identified. Except Odontobuthus tirgari Mirshamsi et al., 2013, all species are new for the fauna of Nehbandan region. Sassanidotus gracilis (Birula, 1900) is a new report for the fauna of South Khorasan province. A specimen of the genus Olivierus Farzanpay, 1987 was identified, which seems to be a new species. Identification of species and determining their distribution range, while helping zoology, is also useful and important for treatment management and medical education.