Thagria

Fan, Zhi-Hua, Li, Zi-Zhong & Dai, Ren-Huai, 2015, Taxonomic study of the leafhopper genus Thagria Melichar (Hemiptera: Cicadellidae: Coelidiinae) from Guangxi, China, Zootaxa 3918 (4), pp. 451-491 : 455-456

Key to species (males) of Thagria from Guangxi, China

1. Head produced slightly beyond anterior margin of eyes, portion beyond eyes less than 1/2 of entire length of crown, apex bluntly rounded ( Figs. 6 , 38 , 60 , 85 , 97 , 119 , 130 , 140 , 153 , 164 , 191 , 249, 259; Fan et al. 2013: 142, Fig. 1 )............. 2

- Head produced strongly beyond anterior margin of eyes, portion beyond eyes about or over 1/2 of entire length of crown, apex sharply angulate ( Figs. 16 , 26 , 50 , 109 , 202 , 214 , 224 )....................................................... 15

2. Clypellus with base inflated, as wide as or wider than clypeus at juncture of clypeal suture ( Figs. 9 , 41 , 63 , 88 , 100 , 122 , 143 , 167 , 194 , 252, 262; Fan et al. 2013: 142, Fig. 3 )............................................................. 3

- Clypellus with base flattened, narrower than clypeus at juncture of clypeal suture ( Figs. 133 , 156 )..................... 4

3. Segment X with ventral processes exposed ( Figs. 65 , 90 , 102 , 145 , 169 , 196 , 254; Fan et al. 2013: 143, Fig. 8 )........... 5

- Segment X with ventral processes concealed ( Figs. 11 , 43 , 124 , 264 )........................................... 12

4. Pygofer processes in lateral view curved, long, extending beyond apex of caudoventral lobe; segment X processes in lateral and dorsal views concealed; dorsal connective in dorsal view Y-shaped; paraphysis in dorsal view asymmetrical, with two processes distally; style in dorsal view reaching middle of paraphysis, without process ( Figs. 134, 135, 137 )..... T. matsumurai

- Pygofer processes in lateral view short, straight and not reaching apex of caudoventral lobe; segment X without process; dorsal connective in dorsal view annular; paraphysis in dorsal view symmetrical, without process; style in dorsal view extending beyond apex of paraphysis, with numerous serrations distally ( Figs. 157, 159, 160 ).............. T. multispinosa sp. nov.

5. Dorsal connective in dorsal view U-shaped................................................................ 6

- Dorsal connective in dorsal view V-shaped or C-shaped...................................................... 10

6. Paraphysis in dorsal view excavated distally................................................................ 7

- Paraphysis in dorsal view entire or submedially concave....................................................... 8

7. Paraphysis in dorsal view with base with one digital process ( Figs. 92, 95 )................................. T. digitata

- Paraphysis in dorsal view with base without process ( Figs. 104, 107 )........................................ T. fossa

8. Paraphysis in dorsal view with left margin submedially concave, right margin forming fold, expanded and with two spines dis- tally; style in dorsal view narrowed to tip, reaching middle of paraphysis ( Fig. 67 ).................. T. decussata sp. nov.

- Paraphysis in dorsal view entire, with one or three processes; style in dorsal view with one spine on apex, extending just beyond base of aedeagus................................................................................ 9

9. Paraphysis broad at base, abruptly narrowed distally, with one process basally ( Figs. 147, 150 )............... T. multipars

- Paraphysis gradually narrowed toward apex, nearly parallel, with three processes: one basally, two apically ( Figs. 171, 174 ).................................................................................. T. paramultipars sp. nov.

10. Dorsal connective C-shaped; paraphysis in dorsal view without process ( Figs. 196, 198 )................... T. periserrula

- Dorsal connective V-shaped; paraphysis in dorsal view with one or two processes.................................. 11

11. Segment X ventral processes in lateral view extending beyond the apex of pygofer lobe; paraphysis base in dorsal and lateral views with paired processes, apex toothed ( Fan et al. 2013: 143 Figs. 7, 9, 10 )............................ T. albofascia

- Segment X ventral processes in lateral view not reaching the apex of pygofer lobe; paraphysis base in dorsal and lateral views without process, apex with one hooked process and with one secondary spine (Figs. 253, 256, 257).... T. trifasciata sp. nov.

12. Paraphysis in dorsal view bifurcate apically, with two unequal length spines...................................... 13

- Paraphysis in dorsal view entire, not bifurcate apically, with two adjacent spines ( Fig. 126 ).......... T. irregularis sp. nov.

13. Dorsal connective in dorsal view with proportion of stem to arm length about 1:3; style in dorsal and lateral views with base broad, tapered distally, reaching approximately middle of paraphysis............................................ 14

- Dorsal connective in dorsal view with proportion of stem to arm length about 1:1.8; style in dorsal and lateral views short, throughout narrow, extending just beyond base of paraphysis ( Figs. 264, 266, 268 ).................... T. webbi sp. nov.

14. Forewing with numerous ivory transparent markings; pygofer processes in lateral view with apex bluntly broad; two apical processes of paraphysis with length ratio about 2.5:1 ( Figs. 6, 10, 13, 14 )........................ T. biprocessa sp. nov.

- Forewing with four black markings distally; pygofer processes in lateral view pointed apically; two apical processes of paraph- ysis with length ratio as or less than 2:1 ( Figs. 38, 42, 45, 46, 48, 49 )................................ T. circumcinata

15. Paraphysis with processes............................................................................ 16

- Paraphysis without process............................................................................. 17

16. Style in dorsal view bifurcate near middle, inner branch with some little teeth ( Figs. 231 )............ T. triangula sp. nov.

- Style in dorsal view entire, not bifurcate, apex curved to inside, subapex with one spine directed downward ( Fig. 33 ).................................................................................................... T. bispina

17. Segment X ventral processes with edges glabrous; style bifurcate distally or medially, with two or more processes, and edges glabrous........................................................................................... 18

- Segment X ventral processes with edges serrate; style entire, with one subapical projection and edges serrate distally ( Figs. 113, 116 )..................................................................................... T. furcata

18. Style with three or four processes on apex, subapex or middle, without secondary process in dorsal and lateral views ( Figs. 209, 211–213 )............................................................................ T. philagroides

- Style with two processes apically or bifurcate medially, with or without secondary processes in dorsal and lateral views.. 19

19. Style bifurcate near middle, with secondary processes on inner branch in dorsal and lateral views; aedeagus extending to sub- apex of paraphysis; paraphysis in dorsal view broad over medial 1/3, both ends narrow ( Figs. 221–223 )........ T. projecta

- Style with two processes apically, without secondary process in dorsal and lateral views; aedeagus about 1/2 as long as paraph- ysis; paraphysis in dorsal view broad at base, narrowed distally................................................ 20

20. Paraphysis in dorsal view broad basally, gradually narrowed toward apex, apex approximately truncate; style in dorsal view slender throughout, with two apical processes twisted to inside ( Fig. 57 )................................... T. conica

- Paraphysis in dorsal view broad on basal 1/3, sharply narrowed on apical 2/3, apex bluntly broad; style in dorsal view with subapex expanded, with two apical processes not twisted ( Fig. 23 )........................................ T. birama

Figures

FIGURE 1. Guangxi adjacent regions graph and new species locations. a-f in CHINA: a. Guangxi; b. Yunnan; c. Guizhou; d. Hunan; e. Guangdong; f. Zhejiang. g. Vietnam.

FIGURES 6 – 15. Thagria biprocessa Fan & Dai, sp. nov. Holotype: 6. habitus, dorsal view; 7. habitus, lateral view; 8. head and thorax, dorsal view; 9. face; 10. pygofer, lateral view; 11. dorsal connective, pygofer and segment X processes, dorsal view; 12. subgential plate, lateral view; 13. aedeagus, paraphysis, connective and style, dorsal view; 14. aedeagus and paraphysis, lateral view; 15. style, lateral view. Scale bars: 6 – 9 = 1.0 mm; 10 – 15 = 0.5 mm.

FIGURES 38 – 49. Thagria circumcincta. 38 – 47 from Guangxi: 38. habitus, dorsal view; 39. habitus, lateral view; 40. head and thorax, dorsal view; 41. face; 42. pygofer, lateral view; 43. dorsal connective, pygofer and segment X processes, dorsal view; 44. subgential plate, lateral view; 45. aedeagus, paraphysis, connective and style, dorsal view; 46. aedeagus and paraphysis, lateral view; 47. style, lateral view. 48 – 49 aedeagus and paraphysis from Guizhou: 48. dorsal view; 49. lateral view. Scale bars: 38 – 41 = 1.0 mm; 42 – 49 = 0.5 mm.

FIGURES 60 – 69. Thagria decussata Fan & Dai, sp. nov. Holotype: 60. habitus, dorsal view; 61. habitus, lateral view; 62. head and thorax, dorsal view; 63. face; 64. pygofer and segment X ventral process, lateral view; 65. dorsal connective, pygofer and segment X processes, dorsal view; 66. subgential plate, lateral view; 67. aedeagus, paraphysis, connective and style, dorsal view; 68. aedeagus and paraphysis, lateral view; 69. style, lateral view. Scale bars: 60 – 63 = 1.0 mm; 64 – 69 = 0.5 mm.

FIGURES 85 – 96. Thagria digitata. 85 – 94 from Sichuan: 85. habitus, dorsal view; 86. habitus, lateral view; 87. head and thorax, dorsal view; 88. face; 89. pygofer and segment X ventral process, lateral view; 90. dorsal connective, pygofer and segment X processes, dorsal view; 91. subgential plate, lateral view; 92. aedeagus, paraphysis, connective and style, dorsal view; 93. aedeagus and paraphysis, lateral view; 94. style, lateral view. 95 – 96 aedeagus and paraphysis from Guizhou: 95. dorsal view; 96. lateral view. Scale bars: 85 – 88 = 1.0 mm; 89 – 96 = 0.5 mm.

FIGURES 97 – 108. Thagria fossa. 97 – 106 from Fujian: 97. habitus, dorsal view; 98. habitus, lateral view; 99. head and thorax, dorsal view; 100. face; 101. pygofer and segment X ventral process, lateral view; 102. dorsal connective, pygofer and segment X processes, dorsal view; 103. subgential plate, lateral view; 104. aedeagus, paraphysis, connective and style, dorsal view; 105. aedeagus and paraphysis, lateral view; 106. style, lateral view. 107 – 108 aedeagus and paraphysis from Sichuan: 107. dorsal view; 108. lateral view. Scale bars: 97 – 100 = 1.0 mm; 101 – 108 = 0.5 mm.

FIGURES 119 – 129. Thagria irregularis Fan & Dai, sp. nov. Holotype: 119. habitus, dorsal view; 120. habitus, lateral view; 121. head and thorax, dorsal view; 122. face; 123. pygofer, lateral view; 124. dorsal connective, pygofer and segment X processes, dorsal view; 125. subgential plate, lateral view; 126. aedeagus and paraphysis, dorsal view; 127. aedeagus and paraphysis, lateral view; 128. connective and style, dorsal view; 129. style, lateral view. Scale bars: 119 – 122 = 1.0 mm; 123 – 129 = 0.5 mm.

FIGURES 130 – 139. Thagria matsumurai. 130. habitus, dorsal view; 131. habitus, lateral view; 132. head and thorax, dorsal view; 133. face; 134. pygofer and segment X ventral process, lateral view; 135. dorsal connective, pygofer and segment X processes, dorsal view; 136. subgential plate, lateral view; 137. aedeagus, paraphysis, connective and style, dorsal view; 138. aedeagus and paraphysis, lateral view; 139. style, lateral view. Scale bars: 130 – 133 = 1.0 mm; 134 – 139 = 0.5 mm.

FIGURES 140 – 152. Thagria multipars. 140 – 149 from Guizhou: 140. habitus, dorsal view; 141. habitus, lateral view; 142. head and thorax, dorsal view; 143. face; 144. pygofer and segment X ventral process, lateral view; 145. dorsal connective, pygofer and segment X processes, dorsal view; 146. subgential plate, lateral view; 147. aedeagus, paraphysis, connective and style, dorsal view; 148. aedeagus and paraphysis, lateral view; 149. style, lateral view. 150 – 152 from Fujian: 150. aedeagus, paraphysis, connective and style, dorsal view; 151. aedeagus and paraphysis, lateral view; 152. style, lateral view. Scale bars: 140 – 143 = 1.0 mm; 144 – 152 = 0.5 mm.

FIGURES 153 – 163. Thagria multispinosa Fan & Dai, sp. nov. Holotype: 153. habitus, dorsal view; 154. habitus, lateral view; 155. head and thorax, dorsal view; 156. face; 157. pygofer, lateral view; 158. subgential plate, lateral view; 159. dorsal connective, dorsal view; 160. aedeagus, paraphysis, connective and style, dorsal view; 161. aedeagus and paraphysis, lateral view; 162. apex of right style, lateral view; 163. apex of left style, lateral view. Scale bars: 153 – 156 = 1.0 mm; 157 – 163 = 0.5 mm.

FIGURES 164 – 175. Thagria paramultipars Fan & Li, sp. nov. Holotype: 164 – 173 from Guangxi, Nonggang: 164. habitus, dorsal view; 165. habitus, lateral view; 166. head and thorax, dorsal view; 167. face; 168. pygofer and segment X ventral process, lateral view; 169. dorsal connective, pygofer and segment X processes, dorsal view; 170. subgential plate, lateral view; 171. aedeagus, paraphysis, connective and style, dorsal view; 172. aedeagus and paraphysis, lateral view; 173. style, lateral view. 174 – 175 aedeagus and paraphysis from Guangxi, Nanning: 174. dorsal view; 175. lateral view. Scale bars: 164 – 167 = 1.0 mm; 168 – 175 = 0.5 mm.

FIGURES 191 – 201. Thagria periserrula. 191 – 200 from Guangxi: 191. habitus, dorsal view; 192. habitus, lateral view; 193. head and thorax, dorsal view; 194. face; 195. pygofer and segment X ventral process, lateral view; 196. dorsal connective, pygofer and segment X processes, dorsal view; 197. subgential plate, lateral view; 198. aedeagus, paraphysis, connective and style, dorsal view; 199. aedeagus and paraphysis, lateral view; 200. style, lateral view. 201 pygofer and segment X ventral process from Hainan, lateral view. Scale bars: 191 – 194 = 1.0 mm; 195 – 201 = 0.5 mm.

FIGURES 16 – 25. Thagria birama. 16. habitus, dorsal view; 17. habitus, lateral view; 18. head and thorax, dorsal view; 19. face; 20. pygofer and segment X ventral process, lateral view; 21. dorsal connective, pygofer and segment X processes, dorsal view; 22. subgential plate, lateral view; 23. aedeagus, paraphysis, connective and style, dorsal view; 24. aedeagus and paraphysis, lateral view; 25. style, lateral view. Scale bars: 16 – 19 = 1.0 mm; 20 – 25 = 0.5 mm.

FIGURES 26 – 37. Thagria bispina. 26 – 35 from Guizhou, Maolan: 26. habitus, dorsal view; 27. habitus, lateral view; 28. head and thorax, dorsal view; 29. face; 30. pygofer and segment X ventral process, lateral view; 31. dorsal connective, pygofer and segment X processes, dorsal view; 32. subgential plate, lateral view; 33. aedeagus, paraphysis, connective and style, dorsal view; 34. aedeagus and paraphysis, lateral view; 35. style, lateral view. 36 – 37 aedeagus and paraphysis from Guizhou, Wengang: 36. dorsal view; 37. lateral view. Scale bars: 26 – 29 = 1.0 mm; 30 – 37 = 0.5 mm.

FIGURES 50 – 59. Thagria conica. 50. habitus, dorsal view; 51. habitus, lateral view; 52. head and thorax, dorsal view; 53. face; 54. pygofer and segment X ventral process, lateral view; 55. dorsal connective, pygofer and segment X processes, dorsal view; 56. subgential plate, lateral view; 57. aedeagus, paraphysis, connective and style, dorsal view; 58. aedeagus and paraphysis, lateral view; 59. style, lateral view. Scale bars: 50 – 53 = 1.0 mm; 54 – 59 = 0.5 mm.

FIGURES 109 – 118. Thagria furcata. 109. habitus, dorsal view; 110. habitus, lateral view; 111. head and thorax, dorsal view; 112. face; 113. pygofer and segment X ventral process, lateral view; 114. dorsal connective, pygofer and segment X processes, dorsal view; 115. subgential plate, lateral view; 116. aedeagus, paraphysis, connective and style, dorsal view; 117. aedeagus and paraphysis, lateral view; 118. style, lateral view. Scale bars: 109 – 112 = 1.0 mm; 113 – 118 = 0.5 mm.

FIGURES 202 – 213. Thagria philagroides. 202 – 211 from Fujian: 202. habitus, dorsal view; 203. habitus, lateral view; 204. head and thorax, dorsal view; 205. face; 206. pygofer and segment X ventral process, lateral view; 207. dorsal connective, pygofer and segment X processes, dorsal view; 208. subgential plate, lateral view; 209. aedeagus, paraphysis, connective and style, dorsal view; 210. aedeagus and paraphysis, lateral view; 211. style, lateral view. 212 style from Guizhou, dorsal view. 213 style from Guangxi, lateral view. Scale bars: 202 – 205 = 1.0 mm; 206 – 213 = 0.5 mm.

FIGURES 214 – 223. Thagria projecta. 214. habitus, dorsal view; 215. habitus, lateral view; 216. head and thorax, dorsal view; 217. face; 218. pygofer and segment X ventral process, lateral view; 219. dorsal connective, pygofer and segment X processes, dorsal view; 220. subgential plate, lateral view; 221. aedeagus, paraphysis, connective and style, dorsal view; 222. aedeagus and paraphysis, lateral view; 223. style, lateral view. Scale bars: 214 – 217 = 1.0 mm; 218 – 223 = 0.5 mm.

FIGURES 224 – 233. Thagria triangula Fan & Li, sp. nov. Holotype: 224. habitus, dorsal view; 225. habitus, lateral view; 226. head and thorax, dorsal view; 227. face; 228. pygofer and segment X ventral process, lateral view; 229. dorsal connective, pygofer and segment X processes, dorsal view; 230. subgential plate, lateral view; 231. aedeagus, paraphysis, connective and style, dorsal view; 232. aedeagus and paraphysis, lateral view; 233. style, lateral view. Scale bars: 224 – 227 = 1.0 mm; 228 – 233 = 0.5 mm.

FIGURES 2 – 5. Distribution of newly described Thagria species from China.

FIGURES 259 – 268. Thagria webbi Fan & Li, sp. nov. Holotype: 259. habitus, dorsal view; 260. habitus, lateral view; 261. head and thorax, dorsal view; 262. face; 263. pygofer and segment X ventral process, lateral view; 264. dorsal connective, pygofer and segment X processes, dorsal view; 265. subgential plate, lateral view; 266. aedeagus, paraphysis, connective and style, dorsal view; 267. aedeagus and paraphysis, lateral view; 268. style, lateral view. Scale bars: 259 – 262 = 1.0 mm; 263 – 268 = 0.5 mm.