Metonomastus petrovi sp. n. A paratype ♂, left gonopod, ventromesal view B paratype ♂, distal part of left gonopod, ventromesal view C paratype ♂, right gonopod, ventral view D non-type ♂, right gonopod, mesal view E non-type ♂, right gonopod, ventral, slightly lateral view, F non-type ♂, right gonopod, ventromesal process, same view, enlarged. Abbreviations: cx coxite, pf prefemorite, sl solenomere, ss saddle-shaped process, vm ventromesal process. Scale bars: 0.2 mm (B), 0.05 mm (A, C, D, E), 0.005 mm (F).