R. melanoleuca sp. nov. A–E, G–I. Specimens from the type locality; F. Specimen from Fugong County, Yunnan. A. Adult ♂, newly emerged, dorsal view, front light photography; B, C. Adult ♀, newly emerged, surround light photography: B. Dorsal view; C. Ventral view; D. Adult ♂, natural resting condition, dorsolateral view; E. Mature larva, dorsolateral view; F. Mature larva, lateral view; G, H. Pupa ♀, within an opened cocoon: G. Lateral view; H. Ventral view; I. Cocoon, lateral view. Scale bars: 5 mm.