Hossein Barahoei - Institute of Agricultural Research, University of Zabol, Zabol, Iran
Nasser Sanchooli - Department of Biology, Faculty of Science, University of Zabol, Zabol, Iran
Omid Mirshamsi - Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran

Scorpions (Arachnida; Scorpiones) are important group of Arachnids were appeared about ۴۳۰ million years ago, and distributed in the world except Antarctica. Every year, about ۱.۲۳۰.۰۰۰ people are bited by scorpions in the world and ۳۲.۲۵۰ of them are died. Scorpions feed on many insects and play important role in biological control of pests. Until now, ۶۸ species of scorpions are reported for the fauna of Iran, of which ۱۹ species are recorded from Sistan & Baluchistan province. This study was done during ۲۰۱۶-۲۰۱۹ in different locality of Sistan & Baluchistan province. All samples were collected from different localities by daytime excavation and using UV ultralight in night. Totally ۱۰ species belonging eight genera and two families were collected and identified, consisting: Buthidae: Androctonus baluchicus (Pocock, ۱۹۰۰) from Zabol; A. crassicauda (Olivier, ۱۸۰۷) from Iranshahr, Khash, Nikshahr, Seravan, Zabol and Zahedan; Hottentotta sistanensis Kovarik et al., ۲۰۱۸ from Mehrestan and Seravan; Kraepelinia palpator (Birula, ۱۹۰۳) from Zabol; Mesobuthus eupeus (C. L. Koch, ۱۸۳۹) from Chabahar, Iranshahr, Khash, Mehrestan, Nikshahr, Souran, Zabol and Zahedan; Odontobuthus tirgari Navidpour et al., ۲۰۱۳ from Iranshahr, Khash, Seravan, Zabol and Zahedan; Orthochirus fuscipes (Pocock, ۱۹۰۰) from Chabahar, Iranshahr and Zabol; Sassanidothus gracilis (Birula, ۱۹۰۰) from Iranshahr and Zabol; S. zarudnyi (Birula, ۱۹۰۰) from Zabol; Hemiscorpiidae: Hemiscorpius persicus (Birula, ۱۹۰۳) from Nikshahr. M. eupeus has distributed in all areas of province. A. crassicauda as one of dangerous species showed a wide distribution in this province. Also, two new species of Odontobuthus Vachon, ۱۹۵۰ were identified. These two species will be described in next time. Identification of species and its distribution area, especially for medically dangerous species, can be useful for in health management and biological control of agricultural pests.

Fauna, Buthidae, new species, systematic, Iran