Nephrotoma beibengensis sp. nov. 4 Hypopygium, lateral view 5 inner gonostylus, lateral external view 6 outer gonostylus, lateral external view, before softened 7 tergite 9, dorsal view, softened 8 tergite 9, dorsal view. before softened 9 hypopygium, ventral view. Abbreviations: bk = beak, d ct = dorsal crest, gp = gonapophyses, l bk = lower beak, i gonst = inner gonostylus, o b lb = outer basal lobe, o gonst = outer gonostylus, pct= posterior crest, tg = tergite, st = sternite. Scale bars: 0.5 mm (4, 7–9); 0.1 mm (5, 6).