1	Frons with marking(s)	2
–	Frons without marking	5
2	Frons with 2 rounded dark brown markings near the apex (Long et al. 2015: fig. 39); disks of pronotum and mesonotum in dorsal view with 8 and 6 longitudinal dark brown stripes, respectively (Long et al. 2015: figs 5, 37)	U.concava
–	Frons with dark brown transverse, pronotum and mesonotum not as above	3
3	Frons with 1 dark brown transverse at the end	4
–	Frons with 1 dark brown straight band at the proximal base and end (Fig. 10)	U.tongmaiensis sp. nov.
4	Fore-wing with several small, transverse, dark-brown stripes especially in area of clavus (Long et al. 2015: figs 1–4, 28); dorsal lobe of phallobase in dorsal view with apical margin aspergilliform (Long et al. 2015: fig. 35); apex of phallic appendage with 2 small spines on inner side (Long et al. 2015: figs 35, 36)	U.aspergilliformis
–	Forewing without transverse stripes in area of clavus (Long et al. 2015: figs 9–12, 64) dorsal lobe of phallobase in dorsal view with apical margin roundly convex, and deeply cleft from base to apical 1/4 in midline (Long et al. 2015: fig. 71); apex of phallic appendage without 2 small spines at inner side (Long et al. 2015: figs 71, 72)	U.fissura
5	Vertex with 1 or 2 longitudinal brown stripes	6
–	Vertex without brown stripes	8
6	Discs of vertex and pronotum with 2 longitudinal stripes between lateral carinae respectively	7
–	Discs of vertex and pronotum with only 1 longitudinal stripe between lateral carinae respectively (Long et al. 2015: figs 21, 23, 97)	U.unispina
7	Genae with a brown spot below antenna (Chen et al. 1989: fig. 9B); tegulae without a spot (Matsumura 1914: fig. 7a; Chen et al. 1989: fig. 9A; Rahman et al. 2014: fig. 7A, B)	U.yanonis
–	Genae without a spot below antenna (Long et al. 2015: figs 14, 16, 74); tegulae with a spot (Long et al. 2015: figs 13–16, 73)	U.lineolalis
8	Genae with a brown spot below antenna	9
–	Genae without spot below antenna	10
9	Pronotum and mesonotum with a broad longitudinal brown stripe behind each eye (Long et al. 2015: figs 7, 8, 49); medioventral process of pygofer with apical margin convex, roundly cleft to apical 1/4 at midline (Long et al. 2015: fig. 56)	U.congjiangensis
–	Pronotum and mesonotum behind eyes without stripe (Fennah 1978: fig. 186); medioventral process of pygofer with apical margin truncate, angularly cleft to apical 1/2 in the midline (Fennah 1978: fig. 189)	U.demochares
10	Ventral lobe of pronotum with a dark brown spot (Long et al. 2015: figs 18, 20); fore-wing yellowish brown with a black marking at base, costal margin and clavus with a longitudinal pale-yellow stripe respectively (Long et al. 2015: figs 17–20, 88)	U.oblongincisa
–	Ventral lobe of pronotum with without a spot and without a longitudinal stripe in clavus	11
11	Fore-wing pale, yellowish brown, without a marking at base (Distant 1916: fig. 45)	U.abdominalis
–	Tegmen light yellowish brown to dark brown (Figs 3, 4, 32); basal cell deep brown at end (Fig. 32); medioventral process of pygofer in ventral view (Fig. 18) entire, apically convex, and concave at base	U.rotalarius sp. nov.