Usana

Long, Jian-Kun, Yang, Lin & Chen, Xiang-Sheng, 2015, Six new species of the planthopper genus Usana Distant, 1906 (Hemiptera: Fulgoromorpha: Achilidae) from China, Zootaxa 3947 (4), pp. 489-507 : 491

Key to species of the genus Usana

1. Frons with marking(s).................................................................................. 2

- Frons without marking................................................................................. 4

2. Frons with 2 rounded dark brown markings near the apex ( Fig. 39 ); disks of pronotum and mesonotum in dorsal view with 8 and 6 longitudinal dark brown stripes, respectively ( Figs 5 , 37 ).................................. U. concava sp. nov.

- Frons, pronotum and mesonotum not as above............................................................... 3

3. Forewing with several small transverse dark brown stripes especially in area of clavus ( Figs 1–4 , 28 ); dorsal lobe of phallobase in dorsal view with apical margin aspergilliform ( Fig. 35 ); apex of phallic appendage with 2 small spines at inner side ( Figs 35–36 )......................................................................... U. aspergilliformis sp. nov.

- Forewing without transverse stripes in area of clavus ( Figs 9–12 , 64 )?dorsal lobe of phallobase in dorsal view with apical mar- gin roundly convex, and deeply cleft from base to apical 1/ 4 in midline ( Fig. 71 ); apex of phallic appendage without 2 small spines at inner side ( Figs 71–72 )............................................................ U. fissura sp. nov.

4. Vertex with 1 or 2 longitudinal brown stripes................................................................ 5

- Vertex without brown stripes............................................................................. 7

5. Discs of vertex and pronotum with 2 longitudinal stripes between lateral carinae respectively.......................... 6

- Discs of vertex and pronotum with only one longitudinal stripe between lateral carinae respectively ( Figs 21, 23 , 97 )............................................................................................ U. unispina sp. nov.

6. Genae with a brown spot below antenna ( Chen, Yang & Wilson, 1989: Fig. 9 B); tegulae without a spot ( Matsumura, 1914: Fig. 7 a; Chen, Yang & Wilson, 1989: Fig. 9 A).......................................................... .. U. yanonis

- Genae without a spot below antenna ( Figs 14, 16 , 74 ); tegulae with a spot ( Figs 13–16 , 73 ).................. U. lineolalis

7. Genae with a brown spot below antenna....................................................................8

- Genae without spot below antenna........................................................................ 9

8. Pronotum and mesonotum with a broad longitudinal brown stripe behind each eye ( Figs 7–8 , 49 ); medioventral process of pyg- ofer with apical margin convex, roundly cleft to apical 1/ 4 in the midline ( Fig. 56 )............. U. congjiangensis sp. nov.

- 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

9. Ventral lobe of pronotum with a dark brown spot ( Figs 18, 20 ); forewing yellowish brown with a black marking at base, costal margin and clavus with a longitudinal pale yellow stripe respectively ( Figs 17–20 , 88 )............ U. oblongincisa sp. nov.

- Ventral lobe of pronotum with without a spot; forewing pale yellowish brown without a marking at base and without a longitu- dinal stripe in clavus ( Distant, 1916: Fig. 45 )..................................................... U. abdominalis

Figures

FIGURES 37 – 48. Usana concava sp. nov. 37. Head and thorax, dorsal view; 38. Head, lateral view; 39. Face; 40. Forewing; 41. Hindwing; 42. Anal segment, dorsal view; 43. Male genitalia, lateral view; 44. Pygofer and genital style, ventral view; 45. Left genital style, dorsal view; 46. Left genital style, ventral view; 47. Aedeagus, dorsal view; 48. Aedeagus, ventral view. Scale bars: = 1 mm (Figs 40 – 41); 0.5 mm (Figs 37 – 39, 43 – 44, 47 – 48); 0.2 mm (Figs 42, 45 – 46).

FIGURES 1 – 24. Habitus (dorsal and lateral views): 1 – 2. Usana aspergilliformis sp. nov. (♂); 3 – 4. Usana aspergilliformis sp. nov. (♀); 5 – 6. Usana concava sp. nov. (♂); 7 – 8. Usana congjiangensis sp. nov. (♂); 9 – 10. Usana fissura sp. nov. (♂); 11 – 12. Usana fissura sp. nov. (♀); 13 – 14. Usana lineolalis Distant, 1906 (♂); 15 – 16. Usana lineolalis Distant, 1906 (♀); 17 – 18. Usana oblongincisa sp. nov. (♂); 19 – 20. Usana oblongincisa sp. nov. (♀); 21 – 22. Usana unispina sp. nov. (♂); 23 – 24. Usana unispina sp. nov. (♀).

FIGURES 25 – 36. Usana aspergilliformis sp. nov. 25. Head and thorax, dorsal view; 26. Head, lateral view; 27. Face; 28. Forewing; 29. Hindwing; 30. Anal segment, dorsal view; 31. Male genitalia, lateral view; 32. Pygofer and genital style, ventral view; 33. Left genital style, dorsal view; 34. Left genital style, ventral view; 35. Aedeagus, dorsal view; 36. Aedeagus, ventral view. Scale bars: = 1 mm (Figs 28 – 29); 0.5 mm (Figs 25 – 27, 31 – 32, 35 – 36); 0.2 mm (Figs 30, 33 – 34).

FIGURES 61 – 72. Usana fissura sp. nov. 61. Head and thorax, dorsal view; 62. Head, lateral view; 63. Face; 64. Forewing; 65. Hindwing; 66. Anal segment, dorsal view; 67. Male genitalia, lateral view; 68. Pygofer and genital style, ventral view; 69. Left genital style, dorsal view; 70. Left genital style, ventral view; 71. Aedeagus, dorsal view; 72. Aedeagus, ventral view. Scale bars: = 1 mm (Figs 64 – 65); 0.5 mm (Figs 61 – 63, 67 – 68, 71 – 72); 0.2 mm (Figs 66, 69 – 70).

FIGURES 97 – 108. Usana unispina sp. nov. 97. Head and thorax, dorsal view; 98. Head, lateral view; 99. Face; 100. Forewing; 101. Hindwing; 102. Anal segment, dorsal view; 103. Male genitalia, lateral view; 104. Pygofer and genital style, ventral view; 105. Left genital style, dorsal view; 106. Left genital style, ventral view; 107. Aedeagus, dorsal view; 108. Aedeagus, ventral view. Scale bars: = 1 mm (Figs 100 – 101); 0.5 mm (Figs 97 – 99, 103 – 104, 107 – 108); 0.2 mm (Figs 102, 105 – 106).

FIGURES 73 – 84. Usana lineolalis Distant, 1906. 73. Head and thorax, dorsal view; 74. Head, lateral view; 75. Face; 76. Forewing; 77. Hindwing; 78. Anal segment, dorsal view; 79. Male genitalia, lateral view; 80. Pygofer and genital style, ventral view; 81. Left genital style, dorsal view; 82. Left genital style, ventral view; 83. Aedeagus, dorsal view; 84. Aedeagus, ventral view. Scale bars: = 1 mm (Figs 76 – 77); 0.5 mm (Figs 73 – 75, 79 – 80, 83 – 84); 0.2 mm (Figs 78, 81 – 82).

FIGURES 49 – 60. Usana congjiangensis sp. nov. 49. Head and thorax, dorsal view; 50. Head, lateral view; 51. Face; 52. Forewing; 53. Hindwing; 54. Anal segment, dorsal view; 55. Male genitalia, lateral view; 56. Pygofer and genital style, ventral view; 57. Left genital style, dorsal view; 58. Left genital style, ventral view; 59. Aedeagus, dorsal view; 60. Aedeagus, ventral view. Scale bars: = 1 mm (Figs 52 – 53); 0.5 mm (Figs 49 – 51, 55 – 56, 59 – 60); 0.2 mm (Figs 54, 57 – 58).

FIGURES 85 – 96. Usana oblongincisa sp. nov. 85. Head and thorax, dorsal view; 86. Head, lateral view; 87. Face; 88. Forewing; 89. Hindwing; 90. Anal segment, dorsal view; 91. Male genitalia, lateral view; 92. Pygofer and genital style, ventral view; 93. Left genital style, dorsal view; 94. Left genital style, ventral view; 95. Aedeagus, dorsal view; 96. Aedeagus, ventral view. Scale bars: = 1 mm (Figs 88 – 89); 0.5 mm (Figs 85 – 87, 91 – 92, 95 – 96); 0.2 mm (Figs 90, 93 – 94).