Oribotritia asiatica Hammer, 1977

Liu, Dong, 2015, Review of Oribotritia (Acari, Oribatida, Oribotritiidae) with a world checklist and description of a new species from China, Zootaxa 4007 (2), pp. 217-241 : 223

Oribotritia asiatica Hammer, 1977

( Figs 3 A–G)

Measurements. Prodorsum: length 628–660, width 478–520, height 195–235, setae: ss 221, ro 220, in 310, le 135, ex 120, mutual distance: in–in 160, le–le 410, ro–ro 80; notogaster: length 1110–1380, width 905–1030, height 830–1010; c 1 275, c 2 261, c 3 200, c p 240, d 1 240, d 2 220, e 1 270, e 2 250, h 1 280, h 2 260, h 3 240, ps 1 270, ps 2 260, ps 3 250, mutual distance: c 1– d 1 260, d 1– e 1 510, e 1– h 1 215, h 1– ps 1 235; genito-aggenital plate 260×205, ano-adanal plate 515×130.

Colour brown. One pair of long and strong lateral carinae present; sensilli smooth and setiform; interlamellar and rostral setae thick, erect, rigid and sparsely barbed, lamellar setae smooth and much thinner, exobothridial setae fine; comparative lengths: in> ss> ro>le> ex, in–in / ro–ro= 2. Notogastral setae similar in shape to interlamellar setae. Setae h of mentum longer than distance between them; setation of palps: 0-3-0-3-9(1). Eight pairs of minute genital setae present, including two pairs inserted on progenital area; two pairs of aggenital, three pairs of anal and three pairs of adanal setae present, all minute; lyrifissures iad placed at level of setae ad 3. Setal counts for leg segments: I: 1-4-5(2)-5(1)-22(3); II: 1-4-4(1)-4(1)-20(2), III: 3-2-2(1)-3(1)-15, IV: 3-2-2(1)-3(1)-14; femora I slightly thicken at distal end.

Material examined. ZMCAS: China: Hubei Province: 4 adults (in alcohol), Shennongjia, Guamenshan, from litter, 11–23 Jul. 1998, leg. Hong-Zhang Zhou; 2 adults (in alcohol), Shennongjia, Hongshitougou, 1870 m a.s.l., from litter under mixed forest nearby river, 28 Jul.–10 Aug. 1998, leg. Hong-Zhang Zhou; 22 adults (in alcohol), Shennongjia, Jinhouling, 2410 m a.s.l., from litter under mixed forest, 28 Jul.–10 Aug. 1998, leg. Hong-Zhang Zhou; 2 adults (in alcohol), Shennongjia, Jiuhuping, 1920 m a.s.l., from soil nearby river, 24 Jul. 1998, leg. Hong- Zhang Zhou; 1 adult (in alcohol), Shennongjia, Liaowangta, 2820 m a.s.l., from soil under subalpine meadow, 27 Jul.–8 Aug. 1998, leg. Hong-Zhang Zhou; 6 adults (in alcohol), Shennongjia, Shennongding, 2890 m a.s.l., from soil under subalpine meadow, 26 Jul.–9 Aug. 1998, leg. Hong-Zhang Zhou; 24 adults (in alcohol), Shennongjia, Shennongding, 2700 m a.s.l., from soil under bamboo forest, 26 Jul.–8 Aug. 1998, leg. Hong-Zhang Zhou; 3 adults (in alcohol), Shennongjia, Xiagu, 750 m a.s.l., from soil under broad-leaved forest and shrub, 6–7 Aug. 1998, leg. Hong-Zhang Zhou.

Remarks. Compared with original of description of type specimens, the specimens from China differ by the number of genital setae (eight pairs versus nine pairs in type specimen), and the position of lyrifissures iad (situated at level of setae ad 3 versus situated at the level of setae ad 2 or between setae ad 2 and ad 3).

Figures

FIGURE 3. Oribotritia asiatica Hammer, 1977: A, lateral view of body (legs removed); B, prodorsum, dorsal view; C, right side of ano-genital region; D – G, trochanter, femur, genu and tibia: D, leg I; E, leg II; F, leg III; G, leg IV. Scale bars: A – B, D – G = 200 Μm; C = 100 Μm.