Perittopus asiaticus Zettel, 2001

Ye, Zhen, Chen, Pingping & Bu, Wenjun, 2013, Contribution to the knowledge on the Oriental genus Perittopus Fieber, 1861 (Hemiptera: Heteroptera: Veliidae) with descriptions of four new species from China and Thailand, Zootaxa 3616 (1), pp. 31-48 : 32-34

Perittopus asiaticus Zettel, 2001

(Figs. 5, 8, 13, 16, 21, 28, 30, 35, 40, 44)

Perittopus asiaticus Zettel, 2001a: 110 .

Material examined. CHINA: 11 males and 8 females, macropterous (NKUM), 2 males and 2 females, macropterous (NCTN), Yunnan Province, Simao City, Nuozhadu Nature Reserve, Donggua Valley, 18. V. 2001, 600 m, leg. Jun Li. THAILAND: 8 males and 5 females, apterous, 56 males and 3 females, macropterous (NCTN), Chiang Mai Province, Doi Suthep, Mon Tha Tharn Waterfall, 600 m, 25. III. 2001, leg. Ping-ping Chen, C0135; 2 males, macropterous (NCTN), Chiang Mai Province, Doi Suthep, stream with seeping rock at side of the mountain road, 1. IV. 2001, leg. Ping-ping Chen, C0156. WEST MALAYSIA: paratype, 1 female, apterous, 1 female, macropterous (NCTN), Pulau Tioman.

Redescription of macropterous female (Fig. 8): head and pronotum reddish, antennae black (Fig. 16), legs mainly brown except basal 1/4 to 1/2 of femora dull yellow, apex of femora and all tarsi infuscated, forewings mainly blackish brown, veins brown (Fig. 16), abdomen dorsum dull orange and venter dull yellow. Body length 3.56–3.63 (including fore wing); length of head 0.33–0.34, width of head: 0.74–0.76, about 2.2 times of head length; antennae about 0.38 times as long as body, lengths of antennal segments 1–4: 0.35, 0.3, 0.31, 0.41; pronotum length: 1.50–1.53, width: 1.60–1.62, pronotum with transversal constriction in anterior half, humeral corners prominent, whole surface of pronotum with dense punctures; lengths of leg segments (femur, tibia, and tarsi): fore leg: 0.8, 0.7,and 0.36 (0.06 + 0.3), middle leg: 1.0, 1.08, and 0.96 (0.3 + 0.31 + 0.35), hind leg: 1.2, 1.42, and 0.67 (0.08 + 0.24 + 0.35); forewings slightly surpass posterior end of body, laterally adjacent to medial edge of raised connexiva, hemielytron with thick corium and two closed cells, black hairs on veins relatively short and suberect; abdominal tergites almost flat, connexiva slightly raised, connexivum 7 with some short, suberect, black hairs, connexivum 8 with relatively long, posteriad directed and black hairs in caudal aspect.

Redescription of macropterous male: Its color the same as in female. Body length 3.61–3.64; head length: 0.27–0.28, head width: 0.73–0.74, about 2.64 times head length; antennae about 0.4 times as long as body, lengths of antennal segments 1–4: 0.4, 0.3, 0.32, 0.44; pronotum length: 1.52–1.53, pronotum width: 1.61–1.63; lengths of leg segments (femur, tibia, and tarsi): fore leg: 0.78, 0.74, and 0.36 (0.05 + 0.31), middle leg: 1.1, 1.17, and 0.98 (0.3 + 0.35 + 0.33), hind leg: 1.28, 1.5,and 0.73 (0.1 + 0.26 + 0.37); grasping comb relatively long, about 0.35 times fore tibia length; abdominal segment 8 (Fig. 35) about 1.38 times as long as wide, with dorsal hind margin concave, pygophore and proctiger ( Fig. 40 ) simple, paramere ( Fig. 44 ) with relatively slender basal part and narrow distal, twisted part, apically rounded and blunt; other characters as in macropterous female.

Remarks. P. asiaticus can be recognized easily by its characteristic paramere ( Fig. 44 ). The apterous female of P. a s i a t i c u s can be recognized by the mediotergite 7 with long, black, posteriad directed hairs along hind margin (Fig. 21); the blackish hairs on connexiva of segments 7 and 8; the median ventral pigmented apodeme on sternite 6 is at least the half of the length of sternite 6 (Fig. 28); the apex of the first gonapophysis gradually slim ( Fig. 30 ). The macropterous form of this species is more difficult to separate from other congeneric species. It, however, can be distinguished by having the medial part of pronotum uniformly reddish without black mark (Fig. 16), and the most part of vein Sc+R (namely adjacent to raised connexiva) dark brown to blackish (Fig. 16); connexivum 7 with a tuft of short, semierect, black hairs; connexivum 8 with relatively long, posteriad directed, black hairs.

Distribution. China (Yunnan), Thailand (Mae Hong Son, Chiang Mai, Phrae, Loei, Chayaphum, Phetchabun, Krabi, Satun, and Phuket), West Malaysia (Pahang, Kedah, Penang, Trengganu, Johor, Perak, Selangor).

FIGURES. 1 – 5. Apterous morph of Perittopus spp. (female) 1 P. crinalis sp. nov., holotype, 2 P. falciformis sp. nov., holotype, 3 P. yunnanensis sp. nov., holotype, 4 P. zhengi sp. nov., holotype, 5 P. asiaticus Zettel, 2001, paratype. Scale 1.0 mm.

FIGURES. 6 – 8. Macropterous morph of Perittopus spp. (female) 6 P. yunnanensis sp. nov., paratype, 7 P. zhengi sp. nov., paratype, 8 P. asiaticus Zettel, 2001. Scale 1.0 mm.

Figures

FIGURES 36 – 40. Proctigers of Perittopus spp. in dorsal view (male) 36 P. crinalis sp. nov., 37 P. falciformis sp. nov., 38 P. yunnanensis sp. nov., 39 P. zhengi sp. nov., 40 P. asiaticus Zettel, 2001. Scale 0.2 mm.

FIGURES 41 – 45. Parameres of Perittopus spp. (41 – 45 a. in lateral view; 45 b. in perpendicular view) (male) 41 P. yunnanensis sp. nov., 42 P. crinalis sp. nov., 43 P. zhengi sp. nov., 44 P. asiaticus Zettel, 2001, 45 a P. falciformis sp. nov., 45 b P. falciformis sp. nov.. Scale 0.1 mm.

FIGURES 29 – 30. Innerlobe of first gonapophysis of Perittopus spp. (female) 29 P. zhengi sp. nov., 30 P. asiaticus Zettel, 2001. Scale 0.01 mm.