Pseudovelia globosa, 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 : 297-298

Pseudovelia globosa sp. n.

(Figs. 5, 18, 30, 42, 54, 66, 78, 90, 102, 114, 126)

Material examined. Holotype: apterous male, CHINA, Guangdong Prov., Shaoguan city, Nanling Nature Reserve 20 August 2011, 1100 m, Zhen Ye leg (NKUM). Paratypes: CHINA, Guangdong Prov.: 5 apterous males, 7 apterous females, same data as holotype (NKUM).

Description. Apterous male (Fig. 5). Colour: ground colour blackish brown, head almost black, clypeus dark brown; labrum black, rostrum yellowish with black apex, buccula orange; basal part of antennal segment I orange, apical half brown, segments II–IV blackish brown; pronotum dull orange, posterior portion with dense, black spots; legs mainly brown, with apices of femur and tibia weakly infuscated, tarsus blackish brown; abdomen mainly dark brown, connexiva dull orange, lateral portions of mediotergite I, medial portions of mediotergites II, III VI and VIII with prominent silvery pubescence; segment VIII, pygophore and proctiger yellowish, each apically infuscated. Structural characteristics: body length: 2.79–2.83 (holotype: 2.8), medium-sized, rather stout, bearing short, suberect, grayish hairs, areas around the eyes and antennal segment I covered by with relatively long, suberect, grayish hairs. Head short and wide, width: 0.63–0.65, length: 0.34–0.36, head width about 1.83 times head length, relatively perpendicular, posterior margin almost straight; labrum angular, buccula clearly visible, not produced posteriorly; eyes bare except for the presence of two ocular setae; antenna about 0.66 times as long as body, lengths of antennal segments I–IV: 0.61, 0.36, 0.36, 0.53. Pronotum almost rounded, width: 0.82–0.84, length: 0.49–0.51, about 1.66 times as wide as long; bearing dense, dark punctures on posterior part of pronotal lobe, anterior and posterior margins almost straight; metanotum completely hidden beneath pronotal lobe except laterally; fore tibia ( Figs. 18 , 30 ) slightly widened apically, with dense, suberect, short hairs, medial portion of venter on fore tibia with slight process, length of grasping comb 0.31, about 0.39 times fore tibial length ( Fig. 30 ); middle leg ( Fig. 42 ) with short, suberect hairs; hind tibia ( Fig. 54 ) straight, hind tarsal segment I ( Fig. 66 ) extremely short, almost globose, basal portion of hind tarsal segment I with a cluster of relatively long, black bristles, ventral arolium bristle-like; lengths of leg segments (femur, tibia and tarsus): fore leg: 0.81, 0.79 and 0.38, middle leg: 1.05, 1.04 and 0.58 (0.15+0.43), hind leg: 1.11, 1.09 and 0.65 (0.13+0.52). Abdomen with mediotergites almost flat, connexival segments IV–VI approximately rectangular, strongly raised; mediotergites II–VI subequal in length; abdominal venter flat, slightly concave medially. Genital segments: relatively small, segment VIII ( Figs. 78 , 90 , 102 , 114 ) about 1.49 times as long as wide, posterior margin with sparse, erect, brown hairs, with sub-square shaped depression ventrally, hind margin of depression with a pair of laminar processes, medial part and lateral part of this depression with clusters of short hairs; lateral part of sub-anterior margin of pygophore ( Fig. 126 ) with a cluster of slender, blackish brown hairs, posterior margin of pygophore with short, relatively dense, brown hairs; proctiger small, with rather blunt apex, posterior margin with rather short, erect, black hairs; paramere symmetrical, small, stick-like, with rounded, widened apex.

Apterous female. Similar to male; body slightly wider than in male, length: 2.79–2.83; structure of head including antenna as in male, head width: 0.62–0.64, head length: 0.34–0.36, head width about 1.8 times head length, antenna about 0.62 times as long as body, lengths of antennal segments I–IV: 0.52, 0.34, 0.37, 0.50; hind margin of pronotum straight, width: 0.81–0.83, length: 0.44–0.46, about 1.8 times as wide as long; fore tibia without grasping comb, hind tibia and tarsus unmodified, venter of hind tibia without row of blackish-brown short spines, hind tarsal segment I extremely short, but not globose, venter of hind tarsal segment I without a row or cluster of black bristles; lengths of leg segments (femur, tibia and tarsus): fore leg: 0.80, 0.73 and 0.40, middle leg: 1.00, 0.98 and 0.58 (0.18+0.4), hind leg: 1.05, 1.1 and 0.6 (0.17+0.43); abdomen pleurally and ventrally without special modifications, connexiva relatively broad, strongly 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. The specific epithet “ globosa ” (from Latin, meaning rounded or globular) refers to the fact that hind tarsal segment I of the male is extremely short and almost globular.

Diagnosis. The most striking character of P. globosa sp. n. is the form of hind tarsal segment I which is extremely short and almost globose, with a length only about 0.25 times that of hind tarsal segment II ( Fig. 66 ). In addition to above mentioned character, P. globosa sp. n. may be separated from P. e x t e n s a sp. n. by the structure of the medial portion of the fore tibial venter, which is only slightly convex ( Fig. 30 ), and by the absence of a row of 8–10 short, black spines on the lateral portion of the hind tibia; further differences are found in the structure of the venter on abdominal segment VIII (compare Figs. 78 , 90 , 102 , 114 with Figs. 76 , 88 , 100 , 112 ).

Distribution. China (Guangdong) ( 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.