Habitus photographs of species of Xanthopygus sensu Herman 2001 A Xanthopygus calidus (Er.) B Xanthopygus chapareanus Scheerpeltz C Xanthopygus dimidiatus Bernhauer. Species A–C are transferred to Photinopygus gen. nov. D Xanthopygus giganteus (Bernhauer) E Xanthopygus xanthopygus (Nordmann) F Xanthopygus skalitzkyi (Bernhauer), transferred to Styngetus. Scale bars: 1.8 mm (A); 1.7 mm (B) 1.8 mm (C); 3.8 mm (D); 3.0 mm (E); 2.0 mm (F).