S. enatus comb. n. A–B male body, scale bar: 5 mm (A – without hindwings; B – with hindwings). C–D Hind Legs, scale bar: 2 mm (C – color of posterior tibiae and the first section of posterior tarsus yellowish-brown; D – color of posterior tibiae and the first section of posterior tarsus dark brown). E–N Genitalia, scale bar of chart E–G: 0.5 mm; scale bar of chart H–M: 0.25 mm (E – dorsal view; F – lateral view; G – ventral view; H–J – dorsal enlarged view). K–N – Apex of lateral enlarged view. Notes: E – apex of epiphallic lateral lobes not bifurcate; I–J – the apex of epiphallic lateral lobes bifurcate, and length of branches varied in different materials; K – apex of epiphallic lateral lobes possessing an acute protrusion; L – apex of epiphallic lateral lobes possessing an obtuse protrusion; M – apex of epiphallic lateral lobes possessing two obtuse protrusions; N – apex of epiphallic lateral lobes possessing three obtuse protrusions. Of these, D–G and K are the same as that of M. flavipes in Yunnan (Yin & Liu, 1995); A, H, and L are the same as that of M. eryuanensis (Yuan et al., 2021)).