Two new species of Hemiscorpius, H. falcifer, sp. nov. and H. flagelliraptor, sp. nov., are described from the Al Hajar Mountains of northern Oman. Although both are lithophilic or ultralithophilic scorpions beautifully adapted for living in rock crevices, they exhibit divergent morphologies and may not be closely related. H. falcifer is distinguished by: smaller size, relatively short compact metasoma, bulbous telson, relatively distal placement of lamellar double hook of hemispermatophore, pedipalp chela with wide, sub-triangular manus and exceptionally elongated fingers with single file dentition along distal half of movable finger (in adults); H. flagelliraptor is distinguished by: extremely elongated, sexually dimorphic metasoma, slender telson, proximal placement of lamellar double hook of hemispermatophore, slender pedipalp chela with double denticle rows along the distal half of movable finger. Although orthobothriotaxic, in other respects H. flagelliraptor appears most similar to the neobothriotaxic species H. enischnochela Monod et Lourenço, 2005 and H. gaillardi (Vachon, 1974) from Iran.

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