Centrioncus crassifemur sp. nov., ♀, holotype, N’dalatando 101 sternites 1–5, ventral view 102 sternites 6–8, subanal plate, cerci, ventral view 103 tergites 8, 10, cerci, dorsal view 104 sternite 7, ventral view 105 subanal plate, ventral view. Scale bars: 0.5 mm (101, 102); 0.1 mm (103–105).