Signoretia sinuata, Viraktamath, C. A. & Webb, M. D., 2016

Viraktamath, C. A. & Webb, M. D., 2016, Review of the genus Signoretia (Hemiptera: Cicadellidae: Signoretiinae) of the Oriental region with description of nine new species, Zootaxa 4193 (3), pp. 486-516 : 495-496

Signoretia sinuata sp. nov.

Figs 39–42 , 62, 63 , 78 , 94–96 , 176–182 .

Pale ochraceous (pale green in life). Anterior margin of crown and forewings pale brown.

Crown elongate, with sinuate lateral margins narrowed and rounded anteriorly, surface longitudinally rugose, rather flat. Face punctate. Pronotum coarsely punctate, one transverse submarginal band impunctate, without median or sublateral carinae, about as wide as or slightly wider than head including eyes. Forewing with outer subapical cell and four apical cells, narrowed posteriorly.

Male genitalia. Pygofer rather rectangular with dorsal margin sloping, ventral margin concave and with prominent ventral process along posterior margin and exceeding dorsal margin, apex rather rounded with toothlike projection, surface sparsely spinose. Subgenital plate 3.5 times as long as wide at base, rather triangular with rounded apex, with outer marginal long hair-like setae and lacking short stout setae. Style with stouter anterior half, apophysis curved laterally with prominent rugae on inner margin and long setae on outer margin, subapical lobe not prominent. Connective Y-shaped. Ventral process of aedeagus elongate, arms asymmetrical crossing each other at base and setulose along dorsal margins, apex with finely crenulated margin, aedeagus with atrium well developed, S-shaped with two pairs of tooth-like processes, shaft tubular with apical gonopore, in dorsal or posterodorsal view, shaft broad at base and narrowed distally. Segment X long with anterolateral short toothlike process on each side ventrally.

Female genitalia. Seventh sternite about as long as broad in middle, narrowed posteriorly,with deeply concave posterior margin having rounded lateral angles. First and second pair of vlavulae as in Figs 94–96 .

Measurements. Male 7.2–7.5 mm long, 1.5 mm wide across eyes and 1.6 mm wide across posterolateral angels of pronotum. Female 7.8–8.4 mm long, 1.6–1.7 mm wide across eyes and 1.7 mm wide across posterolateral angels of pronotum.

Material examined. INDIA: Holotype Ƌ, West Bengal: Tiger Hills , 2660 m, 24.x.1981, S. Viraktamath ( UASB) . Paratypes: 4 Ƌ, 3 ♀, same data as holotype ( UASB) .

Etymology. The species name alludes to the sinuate lateral margins of the crown.

Remarks. S. sinuata resembles S. mishmiensis and S. yangi in the shape of the crown and in having the arms of the ventral process of the aedeagus setose dorsally and crossing over each other at the base. However, it differs from S. yangi in having the ventral process of the pygofer exceeding the dorsal margin of the pygofer lobe and from S. mishmiensis in having two pairs of atrial processes (one pair in S. mishmiensis ).

Figures

FIGURES 31 – 46. Habitus and wings of species of Signoretia. 31 – 36. S. sahyadrica sp. nov., 31 – 32 holotype male; 33 – 34. Paratype female. 35 – 36. Paratype male; 37 – 38. S. similaris sp. nov., holotype male; 39 – 40. S. sinuata sp. nov., holotype male; 41 – 42. S. sinuata, paratype female; 43 – 45. S. sumatrana Schmidt, holoype male; 46. S. tagalica Baker, syntype. Figs 31, 33, 35, 37, 39, 41, 43, 46. Dorsal aspect. Figs 32, 34, 36, 38, 40, 42, 45. Lateral aspect. 44. Fore and hind wings.

FIGURES 47 – 65. Habitus and faces of species of Signoretia. 47 – 48. S. takiyae sp. nov. holotype male; 49. S. aureola Distant; 50 – 51. S. dulitensis sp. nov., male and female; 52 – 53. S. lunglei sp. nov., male and female; 54. S. maculata, female; 55. S. mismiensis sp. nov.; 56 – 57. S. quoinensis, male and female; 58. S. rubra sp. nov.; 59 – 60. S. sahyadrica sp. nov. male and female; 61. S. similaris sp. nov. male; 62 – 63. S. sinuata, male and female; 64. S. sumatrana Schmidt; 65. S. takiyae sp. nov., male. Fig. 47. Dorsal aspect. Fig. 48. Lateral aspect. Figs 49 – 65. Ventral aspect.

FIGURES 66 – 79. Profile of head and thorax of species of Signoretia. 66. S. aureola Distant; 67. S. dulitensis sp. nov.; 68. S. greeni Distant; 69. S. lunglei sp. nov.; 70 – 71. S. maculata Baker; 72. S. mishmiensis sp. nov.; 73. S. quoinensis sp. nov.; 74. S. rubra sp. nov.; 75 – 76. S. sahyadrica sp. nov.; 77. S. similaris sp. nov. 78. S. sinuata sp. nov.; 79. S. takiyae sp. nov.

FIGURES 91 – 97. Female ovipositor and male genitalia of species of Signoretia. 91 – 93. S. quoinensis sp. nov. 91. Ovipositor, lateral view; 92. Apex of first pair of valvula; 93. Apex of second pair of valvula. 94 – 96. S. sinuata sp. nov. 94. Ovipositor, lateral view; 95. Apex of first pair of valvula; 96. Apex of second pair of valvula. 97. Male genital capsule of S. maculata Baker, lateral view.

FIGURES 176 – 182. Signoretia sinuata sp. nov. 176. Male genital capsule, lateral view; 177. Subgenital plate, ventral view; 178. Style, lateral view; 179. Connective and ventral process of aedeagus, ventral view; 180. Aedeagus and ventral process, lateral view; 181. Aedeagus, anterodorsal view; 182. Female seventh sternite, ventral view.