Signoretia mishmiensis, 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 : 492

Signoretia mishmiensis sp. nov.

Figs 23, 24 , 55 , 72 , 133–139 .

Uniformly creamy white.

Crown depressed in middle with one median carina, anterior margin without rim, surface smooth and shining, posterior margin of crown reflexed, keeled; lateral margin keeled and reflexed in basal half and apical half raised and rounded. Lateral margin of pronotum slightly concave laterally. Forewings in both sexes without lateral small subapical cell present in other species of Signoretia .

Male genitalia. Pygofer with dorsal margin straight, posterodorsal angle almost rectangular, ventral margin straight, ventral process stouter, exceeding height of pygofer, apex slightly curved anteriorly, body of process with several short microsetae. Subgenital plate rather triangular with posterior apex bluntly angled, long hair like setae on outer margin and series of smaller microsetae along submargin of entire length, plate approximately three times as long as wide at base. Connective Y-shaped, arms short. Style without subapical lobe, distal 0.33 curved laterally with lateral margin toothed. Aedeagus membranous, atrium elongate, with pair of slender processes ventrad of shaft directed posteriorly, shaft cylindrical, short, in dorsal view oppressed, subequal to ventral process, gonopore apical, ventral process elongated, each arm of ventral process crossing over each other at base, with dorsal marginal brush like setae on inner margin and without setae on outer margin. Segment X elongate without any processes.

Measurements. Male 6.7 mm long, 1.4 mm wide across eyes and also across posterolateral angles of pronotum. Female 7.2 mm long, 1.5 mm wide across eyes ad also across posterolateral angles of pronotum.

Material examined. Myanmar: Holotype Ƌ , Burma: Mishmi Hills , Chhagkib, 5350 ft, 26.ii.1935, M. Steele, Brit, Mus, 1935-312 ( BMNH) . Paratype, 1 ♀, same data as holotype except 6.iii.1935 ( BMNH) .

Etymology. The species name alludes to the type locality.

Remarks. S. mishmiensis is similar to S. yangi Li in having brushlike setae on the dorsal margin of the ventral process of the aedeagus but differs in having a much longer pygofer process and more elongate head which is depressed and without an anterior marginal keel. It is uniformly creamy white compared to greenish S. lunglei .

Figures

FIGURES 16 – 30. Habitus of species of Signoretia. 16 – 17. S. lunglei sp. nov., female; 18 – 22. S. maculata Baker: 18 – 19. Female; 20. Male; 21 – 22. S. maculata, holotype female; 23 – 24. S. mishmiensis sp. nov. holotype male; 25 – 26. S. quoinensis sp. nov. holotype male; 27 – 28. S. quoinensis, paratype female; 29 – 30. S. rubra sp. nov. holotype male. Figs 16, 18, 21, 23, 25, 27, 29. Dorsal aspect. Figs 17, 19, 20, 22, 24, 26, 28, 30. Lateral aspect.

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 133 – 139. Signoretia mishmiensis sp. nov. 133. Male genital capsule, lateral view; 134. Subgenital plate, ventral view; 135. Style, dorsal view; 136. Aedeagus and ventral process, lateral view; 137. Aedeagus, dorsal view; 138. Connective, dorsal view; 139. Ventral process of aedeagus, ventral view.