Male, pupa and larva of S. phapeungense sp. nov. A–E male F–H pupa I, J larva A hind basitarsus and second tarsomere (left side; lateral view) B coxites, styles and ventral plate (ventral view) C style (right side; ventrolateral view) D ventral plate and median sclerite (lateral view) E ventral plate (caudal view) F gill filaments (right side; lateral view) G terminal hooks (caudal view) H cocoon (dorsal view) I head capsule showing postgenal cleft (ventral view) J postgenal cleft (ventral view). Scale bars: 1.0 mm (H); 0.1 mm (F, I, J); 0.02 mm (A–E); 0.01 mm (G).