Pseudovelia longiseta, Ye, Zhen, Polhemus, Dan A. & Bu, Wenjun, 2013

Ye, Zhen, Polhemus, Dan A. & Bu, Wenjun, 2013, A taxonomic contribution to the genus Pseudovelia Hoberlandt, 1951 (Hemiptera: Veliidae) from China, with descriptions of ten new species, Zootaxa 3636 (2), pp. 290-318 : 299-300

Pseudovelia longiseta sp. n.

(Figs. 7, 20, 32, 44, 56, 73, 80, 92, 104, 116, 128)

Material examined. Holotype: apterous male, CHINA, Yunnan Prov., Tengchong County, Shaba tree farm, 11 May 2011, 1780 m, Zhen Ye leg. (NKUM). Paratypes: CHINA, Yunnan Prov.: 4 apterous males, 5 apterous females, same data as holotype.

Description of apterous male (Fig. 7). Colour: ground colour dark orange, head dull orange, clypeus, pseudocellar spots and median line of head dark brown; labrum black, rostrum dark brown with black apex, buccula yellowish; antennal segment I dark yellow, segments II–IV brown; pronotum dark orange, posterior parts with dense, black spots, area behind head along anterior margin lacking black spots; legs mainly dark yellow, with apices of femur and tibia weakly infuscated, basal part of femur slightly shallow, apex of tarsus strongly infuscated; abdomen mainly dark orange, lateral parts of mediotergite I, all of mediotergites II and III, medial parts of mediotergites VI and VII, and internal sections of laterotergites IV–VI with prominent silvery pubescence; segment VIII, pygophore and proctiger yellowish, each of them apically weakly infuscated. Structural characteristics: body length: 2.75–2.81 (holotype: 2.79), medium-sized, rather stout, set with short, grayish hairs, area around the eyes and antennal segment I covered with scattered, long, suberect, grayish hairs. Head short and wide, width: 0.66–0.68, length: 0.36–0.37, head width about 1.81 times head length, relatively perpendicular; labrum angular, buccula subtriangular, produced posteriorly, overlapping anterior portion of prosternum; eyes bare except for the presence of two ocular setae; antenna about 0.65 times as long as body, lengths of antennal segments I–IV: 0.57, 0.35, 0.40, 0.50; pronotum broad, pronotum width: 0.89–0.90, pronotum length: 0.57–0.59, about 1.55 times as wide as long; with dark punctures densely scattered on the posterior portion of pronotal lobe, hind pronotal margin slightly rounded, with anterior margin slightly emarginated; metanotum completely hidden beneath pronotal lobe except laterally; fore tibia ( Figs. 20 , 32 ) slightly widened apically, with dense, suberect, short setae, medial portion of venter on fore tibia slightly convex, length of grasping comb 0.40, about 0.53 times fore tibia length ( Fig. 32 ); middle leg ( Fig. 44 ) relatively slender, apical half of venter on middle femur with a row of long, erect, brown hairs; hind leg ( Fig. 56 ) strongly modified, hind tibia relatively short, hind tarsus much longer than hind tibia, hind tarsal segment I longest and slightly curved, about 1.24 times length of hind tibia, with a tuft of more than 5 very long, black bristles arising from basal part ( Fig. 73 ), ventral arolium bristle-like; lengths of leg segments (femur, tibia and tarsus): fore leg: 0.80, 0.76 and 0.41, middle leg: 1.05, 1.0 and 0.65 (0.25+0.4), hind leg: 1.07, 0.85 and 1.51 (1.06+0.45); mediotergites almost flat, connexival segments III–VI approximately rectangular, slightly raised; mediotergites II–VI subequal in length; abdominal venter flat, slightly concave medially. Genital segments: segment VIII ( Figs. 80 , 92 , 104 , 116 ) about 1.71 times as long as wide, posterior margin with long, erect, black hairs, ventrally depressed, nearly sub-oval in shape, with two small tufts of hairs and two relatively large tufts of hairs along its margin; pygophore ( Fig. 128 ) sub-rectangular, posterior margin with short, erect, black hairs; proctiger small, with rather blunt apex, posterior margin with short, sparse, black hairs; paramere symmetrical, small, medial part slightly constricted, with rounded, widened apex.

Description of apterous female. Similar to male, but body slightly stouter, body length: 2.70–2.72; structure of head including antenna as in male, head width: 0.65–0.67, head length: 0.38–0.39, head width about 1.69 times head length, antenna about 0.59 times as long as body, lengths of antennal segments I–IV: 0.55, 0.30, 0.30, 0.45; pronotum as in male, width: 0.87–0.89, length: 0.48–0.49, about 1.8 times as wide as long; fore tibia without grasping comb, venter of middle femur without a row of long, erect, brown hairs, hind tibia and tarsus without modifications, length of hind tibia about 3.5 times length of hind tarsal segment I, basal part of hind tarsal segment I without a cluster of long bristles, hind tarsal segment I shorter than segment II; lengths of leg segments (femur, tibia and tarsus): fore leg: 0.73, 0.68 and 0.40, middle leg: 0.90, 0.89 and 0.55 (0.20+0.35), hind leg: 1.00, 1.05 and 0.68 (0.30+0.38); abdomen pleurally and ventrally without special modification, connexiva broad, almost flat, converging posteriorly and touching caudally; terminal end of abdomen distinctly raised in lateral view, gonocoxa I elongate, proctiger blackish brown, directed posteriad, with dense, short hairs.

Macropterous female and macropterous male: unknown.

Etymology. The specific epithet “ longiseta ” (from Latin, meaning long bristle) refers to the structure of male hind tarsal segment I with its tuft of very long, black bristles arising from basal part.

Diagnosis. Pseudovelia longiseta sp. n. seems to be closely related to P. buccula , but the male of P. l o n g i s e t a sp. n. can be recognized by the presence of a row of long, erect, brown hairs on the apical half of the venter on the middle femur ( Fig. 44 ); a tuft of very long bristles arising from the basal part of hind tarsal segment I ( Figs. 56 , 73 ); hind tarsal segment I longer than the hind tibia, being about 1.24 times the hind tibia length (in P. buccula , hind tarsal segment I is shorter than the hind tibia, being about 0.83 times the hind tibial length); and by the differences in the structure of the venter on abdominal segment VIII ( Figs. 80 , 92 , 104 , 116 ).

Distribution. China (Yunnan) ( Fig. 138 ).

Figures

FIGURE 138. Geographical distribution of Pseudovelia from China.

FIGURES 14 – 25. Fore legs of Pseudovelia spp. (males). 14. P. anthracina sp. n.; 15. P. c o nt o r t a sp. n.; 16. P. extensa sp. n.; 17. P. fulva sp. n.; 18. P. globosa sp. n.; 19. P. h s i a o i sp. n.; 20. P. longiseta sp. n.; 21. P. piliformis sp. n.; 22. P. taiwanensis sp. n.; 23. P. vittiformis sp. n.; 24. P. pusilla Hecher, 1997; 25. P. tibialis tibialis Esaki & Miyamoto, 1955. Scale 0.3 mm.

FIGURES 26 – 37. Fore tibia of Pseudovelia spp. (males). 26. P. anthracina sp. n.; 27. P. c o n t o r t a sp. n.; 28. P. extensa sp. n.; 29. P. fulva sp. n.; 30. P. globosa sp. n.; 31. P. vittiformis sp. n.; 32. P. longiseta sp. n.; 33. P. piliformis sp. n.; 34. P. taiwanensis sp. n.; 35. P. hsiaoi sp. n.; 36. P. pusilla Hecher, 1997; 37. P. tibialis tibialis Esaki & Miyamoto, 1955. Scale 0.3 mm.

FIGURES 38 – 49. Middle legs of Pseudovelia spp. (males). 38. P. anthracina sp. n.; 39. P. c o n t o r t a sp. n.; 40. P. e x t e n s a sp. n.; 41. P. fulva sp. n.; 42. P. globosa sp. n.; 43. P. h s i a o i sp. n.; 44. P. longiseta sp. n.; 45. P. piliformis sp. n.; 46. P. taiwanensis sp. n.; 47. P. vittiformis sp. n.; 48. P. pusilla Hecher, 1997; 49. P. tibialis tibialis Esaki & Miyamoto, 1955. Scale 0.5 mm.

FIGURES 50 – 61. Hind legs of Pseudovelia spp. (males). 50. P. anthracina sp. n.; 51. P. c o n t o r t a sp. n.; 52. P. extensa sp. n.; 53. P. fulva sp. n.; 54. P. globosa sp. n.; 55. P. h s i a o i sp. n.; 56. P. longiseta sp. n.; 57. P. piliformis sp. n.; 58. P. taiwanensis sp. n.; 59. P. vittiformis sp. n.; 60. P. pusilla Hecher, 1997; 61. P. tibialis tibialis Esaki & Miyamoto, 1955. Scale 0.5 mm.

FIGURES 62 – 73. Hind tarsus of Pseudovelia spp. (males). 62. P. anthracina sp. n.; 63. P. c o n t o r t a sp. n.; 64. P. extensa sp. n.; 65. P. fulva sp. n.; 66. P. globosa sp. n.; 67. P. h s i a o i sp. n.; 68. P. piliformis sp. n.; 69. P. taiwanensis sp. n.; 70. P. vittiformis sp. n.; 71. P. pusilla Hecher, 1997; 72. P. tibialis tibialis Esaki & Miyamoto, 1955; 73. P. longiseta sp. n.. Scale 0.2 mm.

FIGURES 74 – 85. Photographs of abdominal segment VIII of Pseudovelia spp., ventral view (males). 74. P. anthracina sp. n.; 75. P. c o n t o r t a sp. n.; 76. P. e x t e n s a sp. n.; 77. P. fulva sp. n.; 78. P. globosa sp. n.; 79. P. hsiaoi sp. n.; 80. P. longiseta sp. n.; 81. P. piliformis sp. n.; 82. P. taiwanensis sp. n.; 83. P. vittiformis sp. n.; 84. P. pusilla Hecher, 1997; 85. P. tibialis tibialis Esaki & Miyamoto, 1955. Scale 0.2 mm.

FIGURES 86 – 97. Line drawings of abdominal segment VIII of Pseudovelia spp., ventral view (males). 86. P. anthracina sp. n.; 87. P. c o n t o r t a sp. n.; 88. P. e x t e n s a sp. n.; 89. P. fulva sp. n.; 90. P. globosa sp. n.; 91. P. hsiaoi sp. n.; 92. P. longiseta sp. n.; 93. P. piliformis sp. n.; 94. P. taiwanensis sp. n.; 95. P. vittiformis sp. n.; 96. P. pusilla Hecher, 1997; 97. P. tibialis tibialis Esaki & Miyamoto, 1955. Scale 0.2 mm.

FIGURES 98 – 109. Photographs of abdominal segment VIII of Pseudovelia spp., lateral view (males). 98. P. anthracina sp. n.; 99. P. c o n t o r t a sp. n.; 100. P. extensa sp. n.; 101. P. fulva sp. n.; 102. P. globosa sp. n.; 103. P. hsiaoi sp. n.; 104. P. longiseta sp. n.; 105. P. piliformis sp. n.; 106. P. taiwanensis sp. n.; 107. P. vittiformis sp. n.; 108. P. pusilla Hecher, 1997; 109. P. tibialis tibialis Esaki & Miyamoto, 1955. Scale 0.2 mm.

FIGURES 110 – 121. Line drawings of abdominal segment VIII of Pseudovelia spp., lateral view (males). 110. P. anthracina sp. n.; 111. P. c o n t o r t a sp. n.; 112. P. extensa sp. n.; 113. P. fulva sp. n.; 114. P. globosa sp. n.; 115. P. hsiaoi sp. n.; 116. P. longiseta sp. n.; 117. P. piliformis sp. n.; 118. P. taiwanensis sp. n.; 119. P. vittiformis sp. n.; 120. P. pusilla Hecher, 1997; 121. P. tibialis tibialis Esaki & Miyamoto, 1955. Scale 0.2 mm.

FIGURES 122 – 133. Pygophore of Pseudovelia spp., ventral view (males). 122. P. anthracina sp. n.; 123. P. c o n t o r t a sp. n.; 124. P. extensa sp. n.; 125. P. fulva sp. n.; 126. P. globosa sp. n.; 127. P. hsiaoi sp. n.; 128. P. longiseta sp. n.; 129. P. piliformis sp. n.; 130. P. taiwanensis sp. n.; 131. P. vittiformis sp. n.; 132. P. pusilla Hecher, 1997; 133. P. tibialis tibialis Esaki & Miyamoto, 1955. Scale 0.1 mm.