Genus Tiramideopsis Cook, 1967

Type species: Tiramideopsis ovalis Cook, 1967

Diagnosis: Idiosoma noticeably elongated; surface of dorsal shield with a U-shaped ridge; posterior suture lines of Cx-IV lightly developed and closely flanking the genital field; Cx-IV meeting medially to form a well developed suture line; well developed ridges extending anteriorly from region of insertion of IV-L; Cxgl-2 closely flanking either middle or anterior end of genital field; no condyles associated with openings for insertion of IV-L; 4–7 pairs of Ac; small setae flanking acetabula on separate platelets in female and with enlarged setal bases, lying on ventral shield in male; swimming setae absent; palp uncate; sexual dimorphism of idiosoma, legs and palp may be present in the different species.

Remarks: This is a highly distinctive clade rather distantly related to the other mideopsid genera. It includes two subgenera, Tiramideopsis (four pairs of Ac and a slight sexual dimorphism of IV-L-3 of male) and Navamideopsis (six or seven pairs of Ac and sexual dimorphism of ventral shield and palp in male). Distribution: India, Arabian Peninsula.