Tycherobius farsiensis, Khanjani, Mohammad, Yazyanpanah, Shima, Ostovan, Hadi & Fayaz, Bahman Asali, 2012

Khanjani, Mohammad, Yazyanpanah, Shima, Ostovan, Hadi & Fayaz, Bahman Asali, 2012, Three new species of the genus Tycherobius Bolland (Acari: Camerobiidae) from Iran, Zootaxa 3266, pp. 23-40 : 36-39

Tycherobius farsiensis sp. nov.

( Figs. 34–49 )

Diagnosis. Dorsal idiosoma without pdx seta; palp tarsus with two simple seta; peritreme with one loop; dorsal seta c1 31 (27–31) [29]; The ratio dorsal setae c1: d1: e1: f1 as follows: 0.45(0.39)[0.39]: 2.53(2.29–2.4)[2.36]:0.97(1.06–1.14)[1.11]:1.0(1.0)[1.0]; tarsus I–II with 10(ω)–9(ω); femora I–IV with 4–3–3–2.

Female (n=4). Length of body (excluding gnathosoma ) 350 (300–360) [330], width 282 (220–290) [258].

Gnathosoma ( Figs. 37–38 ). Gnathosoma 98 (100) [100] long (from base of infracapitulum to tip of palp) and 78 (86) [86] wide. Peritreme with one loop ( Fig. 37 ); chelicerae length 42 (32–42) [32]. Infracapitulum with setae m 25 (25) [25] and two pairs of adoral setae (or1–2), or1 7 (7) [7], or2 7 (6–7) [6]; m-m 28 (25–28) [25] ( Fig. 38 ). Palpi five segmented with following setal pattern ( Fig. 38 ): tarsus with one eupathidium, two simple setae, one small solenidion; tibia with three smooth setae and one long claw 22 (20–25) [23]; genu with one long, slender seta 40 (38–41) [40]; femur with two serrated setae 20 (20–25) [22], 40 (33–42) [38]. Palp coxa with one supra–coxal seta 4 (4) [4] long ( Fig. 38 ).

Dorsum ( Figs. 34–36 ). Dorsal idiosoma region with 14 pairs of long and thick serrated setae set on tubercles ( Figs 34–36 ). Length of dorsal setae as follows: vi 90 (83–98) [92], ve 42 (49–50) [49], sci 63 (73–75) [74], sce 28 (30–35) [32], c1 31 (27–31) [29], c2 56 (59–77) [70], d1 175 (168–183) [177], d2 48 (46–50) [49], e1 67 (80–85) [83], e2 45 (50) [50], f1 69 (70–80) [75], f2 40 (40–48) [45], h1 41 (37–45) [41], h2 38 (38–42) [40]. Distances between setae: vi-vi 35 (40–65) [48], ve–ve 95 (85–95) [89], vi–ve 37 (30–39) [33], ve-sci 49 (44–53) [48], sci-sci 167 (130–167) [140], sce–sce 167 (130–167) [140], sci–sce 59 (53–60) [56], c1-c1 20 (16–20) [17], c1-c2 120

(119–120) [120], c2–c2 235 (220–245) [235], c1–d1 45 (50–60) [57], c2-d2 70 (63–75) [71], d1–d1 30 (20–30) [26], d1–d2 109 (95–113) [103], d2–d2 181 (187–200) [193], d1– e 1 70 (65–70) [67], d2– e 2 54 (57–62) [60], e1- e 1 27 (18–27) [22], e1– e 2 81 (85–95) [90], e2–e2 132 (135–155) [142], e1–f1 44 (38–55) [47], e2–f2 34 (28–44) [36], f1–f1 20 (20–22) [21], f1–f2 65 (65–67) [66], f2–f2 98 (90–115) [104], f1–h1 53 (55–65) [60], f2–h2 23 (22–31) [26], h1-h1 12 (15–20) [17], h1–h2 16 (16–20) [17], h2–h2 52 (57–60) [58]. Seta d1 the longest while seta c1 the smallest.

The ratio of dorsal setae as follows: vi / c1 2.90 (3.07–3.16)[3.17]; c1 / d1 0.17 (0.16–0.17)[0.16]; d1 / e1 2.16 (2.1–2.2)[2.13]; e1 / f1 0.97 (1.14–1.06)[1.11]; f1 / h1 1.68 (1.78–1.9)[1.83]; vi / ve 2.14 (1.7–1.96)[1.88]; sci / sce 2.25 (2.14–2.43)[2.31]; c1 / c2 0.55 (0.40–0.46)[0.41]; d1 / d2 3.65(3.5–3.66)[3.61]; e1 / e2 1.49 (1.6–1.7)[1.67]; f1 / f2 1.73 (1.67–1.75)[1.67]; h1 / h2 1.08 (0.97–1.07)[1.03]; c1: d1: e1: f1 0.45(0.39)[0.39]:2.53(2.29–2.4) [2.36]:0.97(1.06–1.14)[1.11]:1.0(1.0)[1.0]. Two pairs of eyes above seta sce, 8 (8–9) [9] and 13 (12–13) [12] diameter ( Fig. 34 ).

Venter ( Figs. 39–41 ). Ventral surface striated, coxae with smooth striations, coxal setae stout and serrate, ventral setae 1a, 3a and 4a slender and slightly serrate (1a set on coxa I). Endopodal shields absent. Anogenital area with one pair of aggenital setae (ag), with one pair of genital setae (g) and three pairs of small and smooth anal setae (ps1–3). Length of ventral setae: 1a 28 (29–33) [31], 1b 33 (43) [43], 1c 78 (77–78) [77], 2b 50 (49–50) [49], 3a 25 (30) [30], 3b 55 (45–55) [46], 3c 45 (59) [59], 4a 22 (22) [22], 4b 24 (20–24) [21], 4c 24 (25) [25], ag 17 (18–20) [19], g 15 (15) [15], ps1 15 (15–20) [18], ps2 18 (15–18) [16], ps3 17 (15–17) [16] ( Figs. 39–41 ).

Legs ( Figs. 42–49 ). Measurements of leg I 759 (770–775) [773], leg II 620 (620–658) [639], leg III 670 (680–723) [702], leg IV 820 (805–848) [827]. Chaetotaxy of leg segments as follows (solenidia in parentheses and not included in setal counts): coxae 3–1–2–2, trochanters 1–1–1–1, femora 4–3–3–2, genua 1(κ)–1(κ)–1–1, tibiae 9(φ)–8(φ)–7(φ)–7(φ), tarsi 10(ω)–9(ω)–7–7 ( Figs. 42–49 ). Number of tenent hairs in tarsi I–IV as follows: 8; 7; 8; 7 ( Figs. 46–49 ). Genua I–IV with one long, serrated setae, genual setae III–IV longer than I–II ( Figs. 42–45 ). Genual setae I–IV length as follows: 69 (74–92) [83]–113 (122–125) [124]–135 (144–146) [145]–175 (160–195) [176]. Solenidia of legs I–IV length as follows: I κ 4 (3–4) [3], II κ 3 (3–4) [3], I φ 20 (13–20) [15], II φ 10 (8–11) [9], III φ 10 (10) [10], IV φ 10 (8–10) [9], I ω 11 (11–12) [12], II ω 8 (7–8) [7]. Coxa I with one supra-coxal seta 4 (3–4) [4] long ( Fig. 41 ).

Male. Unknown.

Remarks. The new species T. farsiensis closely resembles T. polonicus Bolland, 1986 in having the same chaetotaxy of legs I–IV (except tarsus II) and lacking dorsal setae pdx. However, it differs from the latter by: 1) tarsus II with 9(ω) in the former but 10(ω) in the latter; 2) peritreme with one loop in T. farsiensis whereas two loops in T. polonicus ; 3) dorsal setae: c 1 27–31, d1 168–183 and d2 46–50 versus 235, 205 and 95; 4) the ratio of dorsal setae c1: d1: e1: f1 0.39–0.45:2.29–2.53:0.97–1.14:1.0 versus 2.8:2.4:0.71:1.0; 5) the longest and smallest dorsal setae d1 and c1 respectively in T. farsiensis opposed to c1 and sce, f2, h 2 in T. polonicus .

Etymology. This species is named locality name, Fars province.

Type material. Holotype from soil & rotten leaves under oak tree ( Quercus brantii Lindl , Fagaceae ), Koohmare Sorkhi region, Fars province, Iran (29° 30' 09'' N, 52° 10' 20'' E, 1717 m a.s.l.), 31 xi 2010. Three paratypes (P1–3) from same host, respectively: P1 from soil & rotten leaves under oak tree, Koohmare Sorkhi region, Fars province, Iran (29° 29 ' 26'' N, 52° 11' 01'' E, 1636 m a.s.l.), 16 xii 2010. P2, Koohmare Sorkhi region, Fars province, Iran (29° 28' 09'' N, 52° 10' 11'' E, 1769 m a.s.l.), 0 7 iii 2010. P3, Koohmare Sorkhi region, Fars province, Iran (29° 28' 52'' N, 52° 10' 27'' E, 1652 m a.s.l.), 0 3 xi 2010, S. Yazdanpanah. The type materials are preserved as slide mounted specimens and the holotype female and two paratypes are deposited in the Acari Collection of the Department of Plant Protection, Faculty of Agriculture, University of Bu-Ali Sina, Hamedan, Iran and one paratype female will be deposited in the mite Collection of Arachnida, Biosystematic Division, ARC-Plant Protection Research Institute, Pretoria, South Africa.

Figures

FIGURES 34 – 41. Tycherobius farsiensis sp. nov. (Female): 34. Dorsal view of idiosoma; 35. Dorsal seta c 1; 36. Dorsal seta d 1; 37. Peritreme and chelicera; 38. Palp and subcapitulum; 39. Ventral seta 1 a; 40. Ventral seta 1 b; 41. Ventral view of idiosoma.

FIGURES 42 – 45. Tycherobius farsiensis sp. nov. (Female): 42. Femur-tibia I; 43. Femur – tibia II; 44. Femur – tibia III; 45. Femur – tibia IV.

FIGURES 46 – 49. Tycherobius farsiensis sp. nov. (Female): 46. Tarsus I; 47. Tarsus II; 48. Tarsus III; 49. Tarsus IV.