Mosu heguomu sp. nov. A, B, E, F male palp C cymbium D male left metatarsus I A, C ventral B apical D, E prolateral F retrolateral. Abbreviations: CT = cymbial tooth; Cy = cymbium; CyC = cymbial conductor; CyF = cymbial fold; CyFs = setae on cymbial fold; CyS = cymbial serrula; DL = distal lobe on cymbium; E = embolus; MC = Metatarsal clasping spine; MK = median keel on cymbium; SD = spermatic duct; Te = tegulum; Ti = palpal tibia. Scale bars: 0.20 mm (A–C, E, F); 0.10 mm (D).