Indotritia (Indotritia) undulata Bayoumi & Mahunka, 1979

Liu, D., 2015, Review of Indotritia (Acari, Oribatida, Oribotritiidae) with a world checklist, a key to all known species, and a description of a new species from China, Acarologia 55 (4), pp. 397-416 : 404

Indotritia (Indotritia) undulata Bayoumi & Mahunka, 1979 ( Figure 4 )

Measurements — Specimens from Jiangsu Province: prodorsum: length 350 – 372, width 270 – 275, height 95 – 125, sensillus 125, setae: ro 75, in 90, le 80, distance between setae: ro – ro 35, in – in 90, le – le 230; notogaster: length 590 – 610, width 456 – 470, height 460 – 470; setae: c 1 105, c 2 96, c 3 100, c p 95, d 1 102, d 2 96, e 1 112, e 2 110, h 1 110, h 2 105, h 3 95, ps 1 100, ps 2 105, ps 3 80; distance between setae: c 1 – d 1 145, d 1 – e 1 200, e 1 – h 1 135, h 1 – ps 1 120; ventral region: genito-aggenital plate 170 × 122, anal and adanal plates 285 × 80.

Prodorsum with one pair of long lateral carinae; sensilli long, setiform, rigid and smooth; interlamellar and rostral setae robust and sparsely barbed; lamellar setae smooth, procumbent, much thinner than rostral and interlamellar setae; exobothridial setae vestigial; comparative length: in> le> ro. Notogastral setae relatively short (c 1 / c 1 – d 1 = 0.72), curved, robust, sparsely barbed, except setae c 3 and ps 3 smooth and thin; setae c1 and c2 remote from anterior border, setae c 3 near the border; vestigial setae f 1 anterior to setae h 1. Suture between genital and aggenital plates reaching between levels of setae g 8 and g 7; formula of genital setae 4:5; three pairs of aggenital setae, one pair of anal and three pairs of adanal setae present; lyrifissures iad situated laterally between setae ad 2 and ad 3. Setation of legs: I: 1-4-5(2)-5(1)-22(3); II: 1-4-4(1)-3(1)-19(2), III: 3-2- 3(1)-3(1)-14, IV: 3-2-2(1)-3(1)-11; femur I with strong triangular spine in anterodorsal end.

Material examined — ZMCAS: CHINA: Jiangxi Province: 1 adult (in alcohol, Yao-22), Lushan Mountain, Xiaotianchi. (28°41’1.15"N, 115°51’30.01"E), from litter, 2 Sep., 1983, leg. Wen- Bing Yao. Jiangsu Province : 1 adult (in alcohol, W-91-4), Nanjing City, Zhongshan Mountain (32°3’32.30"N, 118°50’49.50"E), from litter, 30 May, 1991, leg. Fu-Sheng Huang ; 1 adult (in alcohol, W-91-5), with same data as W-91-4 ; 2 adults (in alcohol, W-89-42), Nanjing City (32°3’30.11"N, 118°47’47.28"E), eastern suburb, from litter of tea garden, 12 May, 1989, leg. Hui-Fu Wang .

Remarks — Specimens from Jiangxi were investigated and showed conformity with the specimens from Jiangsu. Differences in several features were observed between these specimens (Jiangxi and Jiangsu provinces) and the holotype from Nepal: 1) surface of notogaster finely dotted (versus discontinuous wavy on holotype); 2) in> le> ro (versus le> in> ro on holotype); 3) three pairs of aggenital setae present (versus two pairs on holotype); 4) genito-aggenital scissures shorter reaching between levels of setae g 7 and g 8 (versus between levels of setae g 6 and g 7 on holotype).

Figures

FIGURE 4: Indotritia (Indotritia) undulata Bayoumi & Mahunka, 1979 (specimen from Jiangsu Province): A, lateral view of body (legs removed); B, prodorsum, dorsal view; C, ventral plate; D, mentum of infracapitulum; E – H, trochanter, femur, genu and tibia: E, leg I; F, leg II; G, leg III; H, leg IV. Scale bars: A – C, E – H = 100 µm; D = 50 µm.