Head, thorax and pygofer of Usana new species 9–14 U. tongmaiensis sp. nov., male 15–20 U. rotalarius sp. nov., male 9, 15 head and thorax, dorsal view 10, 16 face 11, 17 head, lateral view 12, 18 pygofer and genital style, ventral view 13, 19 anal segment, dorsal view 14, 20 male genitalia, lateral view. Scale bars: 1 mm (9–11, 15–17); 0.5 mm (12–14, 18–20).