Pseudovelia hsiaoi, 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 : 298-299

Pseudovelia hsiaoi sp. n.

(Figs. 6, 19, 35, 43, 55, 67, 79, 91, 103, 115, 127)

Material examined. Holotype: apterous male, CHINA, Hubei Prov., Xianning city, Tongshan County, Chuangwang town, Gaohu village 10 August 2010, Wenjun Bu leg. (NKUM). Paratypes: CHINA, Hubei Prov.: 1 apterous male, 2 apterous females, same data as holotype (NKUM).

Description. Apterous male (Fig. 6). Colour: ground colour yellowish brown, head brown, clypeus, pseudocellar spots and median line of head dark brown; labrum black, rostrum dark orange with black apex, buccula brown; antennal segments I and II yellowish, segments III and IV brown, inner margins along eyes with prominent silvery pubescence; pronotum dark orange, area along anterior margin behind head with a dark yellow transverse band, posterior lobe with dense, black spots; legs mainly dark yellow, basal portion of femur yellowish, apical portions of tibia and tarsus weakly infuscated; abdomen mainly brown, connexiva dark orange, lateral parts of mediotergite I, all of mediotergites II and III, medial parts of mediotergites VI and VII, and internal parts of laterotergites II–IV with prominent silvery pubescence; segment VIII, pygophore and proctiger yellowish, each apically infuscated. Structural characteristics: body length: 2.23–2.24 (holotype: 2.23), small-sized, form elongate and ovate, bearing short, grayish hairs with area around the eyes and antennal segment I covered by relatively fewer, long, suberect, grayish hairs. Head short and wide, width: 0.52–0.54, length: 0.31–0.32, head width about 1.71 times head length, relatively perpendicular; labrum angular, buccula clearly visible, not produced posteriorly; eyes bare except for the presence of two ocular setae; antenna about 0.61 times as long as body, lengths of antennal segments I–IV: 0.40, 0.27, 0.30, 0.38; pronotum relatively broad, pronotum width: 0.66–0.67, pronotum length: 0.37–0.39, about 1.76 times as wide as long; dark punctures densely scattered on the posterior part of pronotal lobe, pronotum hind margin straight, anterior margin slightly emarginated; metanotum completely hidden beneath pronotal lobe except laterally. Legs with fore tibia ( Figs. 19 , 35 ) slightly widened apically, with dense, suberect, short setae, medial portion of venter on fore tibia slightly convex, length of grasping comb 0.22, about 0.44 times fore tibial length ( Fig 35 ); middle leg ( Fig. 43 ) with short, suberect hairs; hind tibia ( Fig. 55 ) straight, with dense, short, decumbent hairs, hind tarsal segments I and II subequal in length, venter of hind tarsal segment I ( Fig. 67 ) with a row of long, black bristles, ventral arolium bristle-like; lengths of leg segments (femur, tibia and tarsus): fore leg: 0.58, 0.5 and 0.30, middle leg: 0.75, 0.71 and 0.40 (0.14+0.26), hind leg: 0.78, 0.80 and 0.44 (0.20+0.24); mediotergites almost flat, connexival segments III–V approximately rectangular; mediotergites II–V subequal in length; abdominal venter flat, slightly concave medially. Genital segments: relatively small, segment VIII ( Figs. 79 , 91 , 103 , 115 ) about 1.73 times as long as wide, posterior margin with short, sparse, brown hairs, with an irregularly shaped depression ventrally, hind margin of this depression with a prominent laminar process, lateral part of depression slightly convex, bordered with spine-like setae; anterolateral margin of pygophore ( Fig. 127 ) with cluster of slender, yellow brown hairs, posterior margin with short, sparse, black hairs; proctiger small, with rather blunt apex, with row of slender brown hairs laterally, posterior margin with rather short, erect, black hairs; paramere symmetrical, rather small, basal part stick-like, with rounded, widened apex.

Apterous female. Body small-sized, larger than male, slightly elongate, body length: 2.39–2.42; structure of head including antenna as in male, head width: 0.54–0.56, head length: 0.30, head width about 1.83 times head length, antenna about 0.58 times as long as body, lengths of antennal segments I–IV: 0.40, 0.28, 0.32, 0.39; hind margin of pronotum straight, width: 0.69–0.71, length: 0.33–0.34, about 2.1 times as wide as long; fore tibia without grasping comb, hind tibia and tarsus not modified, hind tibia slender and straight, venter of hind tarsal segment I lacking black, long bristles; lengths of leg segments (femur, tibia and tarsus): fore leg: 0.60, 0.53 and 0.30, middle leg: 0.72, 0.76 and 0.44 (0.14+0.3), hind leg: 0.80, 0.85 and 0.48 (0.18+0.3); abdomen pleurally and ventrally without special modifications, connexiva slightly raised, converging posteriorly and touching caudally; end of abdomen raised in lateral view, gonocoxa I elongate, proctiger blackish brown, with dense, short hairs.

Macropterous female and macropterous male: unknown.

Etymology. Named after Dr. Tsai-Yu Hsiao for his contribution to studies of Chinese Heteroptera.

Diagnosis. Pseudovelia hsiaoi sp. n. at first sight resembles P. tibialis tibialis because of its similar general colour, body size, and the presence of prominent patches of silvery pubescence on the inner margin of the head vertex adjacent to the eyes. However, P. hsiaoi sp. n. can be distinguished by having the middle tibia without a tuft of stout bristles near the apex on the anterior margin; by having the hind tarsus much shorter, being about 0.6 times the length of the hind tarsus in P. tibialis tibialis ; and by the structure of abdominal ventrite VIII ( Figs. 79 , 91 , 103 , 115 ).

Distribution. China (Hubei) ( 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.