Parabonzia xinningensis Chen & Jin, 2020
publication ID |
https://doi.org/ 10.24349/acarologia/20204402 |
persistent identifier |
https://treatment.plazi.org/id/03C25544-3E27-FFAB-E4F7-E3C84EBF6E1E |
treatment provided by |
Marcus |
scientific name |
Parabonzia xinningensis Chen & Jin |
status |
sp. nov. |
Parabonzia xinningensis Chen & Jin sp. nov. ( Figures 1–21 View Figure 1 View Figure 2 View Figure 3 View Figure 4 View Figure 5 View Figure 6 View Figure 7 View Figure 8 View Figure 9 View Figure 10 View Figure 11 View Figure 12 View Figure 13 View Figure 14 View Figure 15 View Figure 16 View Figure 17 View Figure 18 View Figure 19 View Figure 20 View Figure 21 )
Zoobank: 2C380B60-BE0F-429B-A119-6E32063195EC
Diagnosis — Hysterosomal median shield with four pairs of setae c (1, c2, d1, e1); palp telofemur with one branched (4 tines) seta; genital plates with eight pairs of genital setae; setal formula of coxal plates I–IV: 6-6-7-7 sts; genu III and genu IV with one and two asl setae respectively; tibia III with one bsl seta.
Description
Female (n = 21; Figures 1–7 View Figure 1 View Figure 2 View Figure 3 View Figure 4 View Figure 5 View Figure 6 View Figure 7 ) Idiosoma 200 (200–246) long, 120 (108–150) wide ( Figures 1–2 View Figure 1 View Figure 2 ).
Dorsum ( Figures 1A View Figure 1 , 2A View Figure 2 , 3A–C View Figure 3 ) — Propodosomal shield trapezoid and papillae, 67 (57–75) long, 83 (85–88) wide, bearing two pairs of trichobothria (at and pt), two pairs of tactile setae (lps and mps) ( Figures 2A View Figure 2 and 3A View Figure 3 ). The bases of at and pt cup-shaped, lps near at, at slightly longer than pt, lps longer than mps, and mps almost on the line of pt. Lateral area outside propodosomal shield with papillate striation. Hysterosoma with one inverted trapezoidal median shield, covered with random papillae, 59 (57–65) long, 80 (73–84) wide, and with four pairs of setae (c1, c2, d1, e1) ( Figures 1A View Figure 1 , 2A View Figure 2 , 3B View Figure 3 ). Areas laterally to median shield with longitudinal papillate striation and two pairs of cupules ia (and im) ( Figures 2A View Figure 2 and 3B View Figure 3 ). Area posterior to median shield with transverse papillate striation, one pair of cupules ip () and four pairs of setae (f1, f2, h1, h2), of which f1 and h1 arising from platelets ( Figures 2A View Figure 2 and 3C View Figure 3 ). Setal lengths and distances: at 93 (93–98), pt 80 (74–80), lps 34 (31–34), mps 23 (20–25), c1 21 (21–22), c2 22 (19–22), d122 (22–24), e1 26 (22–26), f1 24 (21–24), f2 19 (17–19), h1 26 (25–28), h2 18 (17–20); at-at 23 (21–27), pt-pt 34 (34–42), lps-lps 47 (45–54), mps-mps 15 (15–18), lps-mps 36 (30–44), at-lps 19 (18–25), pt-mps 9 (9–12), pt-lps 32 (32–39), at-mps 50 (48–60), at-pt 49 (46–61), c1-c1 27 (26–33), c2-c2 75 (75–97), d1-d1 41 (41–52), e1-e1
27 (27–40), f1-f1 16 (15–22), f2-f2 33 (30–41), h1-h1 13 (10–16), h2-h2 33 (32–45), c1-c2
25 (25–34), c1-d1 24 (24–32), c2-d1 29 (29–38), d1- e1 25 (25–31), e1-f1 25 (25–38), e1-f2
26 (26–41), f1-h1 21 (21–36), f1-h2 29 (27–44), f2-h1 22 (18–35), f2-h2 23 (18–36), f1-f2 8 (8–12), h1-h2 10 (9–18).
Venter ( Figures 1B View Figure 1 , 2B View Figure 2 , 3D–F View Figure 3 , 4A–B View Figure 4 ) — Ventral area between the gnathosoma and coxae
II, coxal plates I–IV, and genital plates with random papillae. Coxae I–II fused and coxae III–IV also fused. Area between coxae II and ppgs with transverse papillate striation; area between coxae III–IV groups with curved longitudinal papillate striation forming the shape of the letter ’’ X ’’; area outside genital plates and anal region with slightly curved longitudinal papillate striation. Setal formula of coxal plates I–IV: 6-6-7-7 sts; one pair of propodogastral setae (ppgs), 7 (7–8) in length, and two pairs of hysterogastral setae, hgs1 and hgs2, 7 (7–8)
and 7 (6–9) in length respectively. Genital plates long 35 (33–37), wide 20 (16–22), two pairs of visible genital papillae, eight pairs of genital setae g (1–g8), 7 (7–8), 6 (7–8), 7 (6–8), 6 (6–8),
7 (6–8), 7 (6–7), 6 (6–6), 6 (6–7) in length, respectively; one pair of eugenital setae (eu) 10 (10–11) in length; five pairs of aggenital setae ag (1–ag5), 6 (7–8), 5 (5–10), 7 (7–10), 6 (6–8),
6 (6–9) in length, respectively. Anal region with one pair of pseudanal setae ps (1), 7 (7–10) in length, four pairs of para-anal setae (pa1–pa4), 19 (17–20), 20 (12–20), 10 (10–13), 7 (7–10)
in length, respectively, and one pair of lyrifissures ih ().
Gnathosoma ( Figures 5A–C View Figure 5 , 6A–D View Figure 6 ) — Palp ( Figures 5A View Figure 5 , 6A View Figure 6 ). Five-segmented, 118 (104– 126) long, all segments with papillae. Palpal chaetotaxy: trochanter without setae; basifemur with two simple setae (one ventral and one dorsal); telofemur with one distally branched (4 tines) seta; genu with four simple setae (two ventral and two dorsal); tibiotarsus with one smooth sigmoid seta, one rod-like solenidion and five smooth simple setae; terminal claw absent. Chelicera ( Figure 5B View Figure 5 ) 117 (114–126) long, with papillae, and ended in a developed cheliceral digit 8 (6–12) in length; cheliceral seta short, 3 (2–3) in length, arising near the base of cheliceral digit. Subcapitulum ( Figures. 5C View Figure 5 , 6B–D View Figure 6 ) 96 (95–123) long, 51 (51–66) wide and without adoral setae; with six pairs of hypognathal setae hg (), hg1 the longest and slightly curved; hg1–hg6 45 (40–46), 20 (18–22), 11 (10–13), 14 (14–19), 12 (10–12) and 10 (8–10)
in length, respectively. Distances of hg setae: hg1-hg1 7 (4–8), hg2-hg2 7 (7–10), hg3-hg3
11 (11–14), hg4-hg4 48 (47–49), hg5-hg5 13 (13–16), hg6-hg6 46 (37–44), hg1-hg2 9 (9–11), hg2-hg3 19 (19–21), hg3-hg4 21 (18–21), hg4-hg5 14 (14–17), hg5-hg6 14 (12–14).
Legs ( Figure 7A–D View Figure 7 ) — Lengths of leg I–IV: 124 (124–135), 113 (113–117), 128 (118–132),
135 (134–146). Lengths of tarsus I–IV: 43 (42–48), 40 (41–43), 40 (37–43), 40 (38–45). T plumose on tibia IV 64 (64–68) in length. Legs I–IV chaetotaxy: coxae I–IV 6-6-7-7 sts; trochanters I–IV 1-1-2-1 sts; basifemora I–IV 4-7-3-2 sts; telofemora I–IV 5-5-4-3 sts. Genu I
4 asl, 5 sts; genu II 2 asl, 5 sts; genu III 1 asl, 6 sts; genu IV 2 asl, 6 sts. Tibia I 1 asl, 1 bsl, 6 sts; tibia II 6 sts; tibia III 1 bsl, 6 sts; tibia IV 1 plumose T, 6 sts. Tarsus I 2 asl, 3 bsl, 1 fam, 1 dtsl, 2 tsl, 18 sts; tarsus II 1 bsl, 1 dtsl, 1 tsl, 18 sts; tarsus III 1 dtsl, 14 sts; tarsus IV 1 dtsl, 12 sts.
Male (n = 1; Figures 8–11 View Figure 8 View Figure 9 View Figure 10 View Figure 11 ) Idiosoma 160 long and 107 wide. ( Figures 8A–B View Figure 8 , 9A–B View Figure 9 )
Dorsum ( Figures 8A View Figure 8 , 9A View Figure 9 ) — Resembling that of the female; propodosomal shield 53 long, 73 wide, median shield 48 long, 63 wide, cupules ia (, im, ip) invisible, setal lengths and distances: at 72, pt 65, lps 26, mps 18, c1 19, c2 16, d1 18, e1 17, f1 17, f2 13, h1 18, h2 12; at-at 19, pt-pt 28, lps-lps 38, mps-mps 12, lps-mps 28, at-lps 17, pt-mps 8, pt-lps 24, at-mps 41, at-pt 36, c1-c1 20, c2-c2 63, d1-d1 32, e1- e1 21, f1-f1 9, f2-f2 20, h1-h1 8, h2-h2 22, c1-c2 24, c1-d121, c2-d125, d1- e1 20, e1-f1 13, e1-f2 14, f1-h1 17, f1-h2 20, f2-h1 16, f2-h2 17, f1-f2 5, h1-h2 9.
Venter ( Figures 8B View Figure 8 , 9B View Figure 9 ) — Eugenital setae (eu) and pseudanal setae ps () absent; setal formula of coxal plates I–IV: 6-6-7-6 sts; propodogastral setae ppgs () and hysterogastral setae (hgs1–hgs2) equal 7 in length. Genital plates long 29, wide 14, six pairs of genital setae (g1–g6; only five setae on left plate), 6–7 in length; two pairs of aggenital setae ag (1–ag2), 6 and 5 in length, respectively. Three pairs of para-anal setae pa (1–pa3), 12, 12, 7 in length, respectively; lyrifissures (ih) invisible.
Gnathosoma ( Figures 10A–C View Figure 10 ) — Resembling the female. Palp ( Figure 10A View Figure 10 ) 105 long; trochanter without setae; basifemur with two simple setae (one ventral and one dorsal); telofemur with one distally branched (4 tines) seta; genu with four simple setae (two ventral and two dorsal); tibiotarsus with one smooth sigmoid seta, one rod-like solenidion and five smooth simple setae. Chelicera ( Figure 10B View Figure 10 ) 107 long; cheliceral seta short, 3 in length. Subcapitulum ( Figures 10C View Figure 10 ) 110 long, 60 wide; hg1–hg6 40, 15, 10, 15, 9 and 8 in length, respectively. Distances of hg setae: hg1-hg1 7, hg2-hg2 9, hg3-hg3 11, hg4-hg4 47, hg5-hg5
13, hg6-hg6 34, hg1-hg2 9, hg2-hg3 21, hg3-hg4 15, hg4-hg5 14, hg5-hg6 8.
Legs ( Figure 11A–D View Figure 11 ) — Resembling those of female; lengths of leg I–IV: 113, 98, 105, 118. Lengths of tarsus I–IV: 40, 33, 35, 38. T 57 in length. Legs I–IV chaetotaxy: coxae I–IV 6-6-7-6 sts; trochanters I–IV 1-1-2-1 sts; basifemora I–IV 4-7-3-2 sts; telofemora I–IV 5-5-4-3 sts. Genu I 4 asl, 5 sts; genu II 2 asl, 5 sts; genu III 1 asl, 6 sts; genu IV 2 asl, 6 sts. Tibia I 1 asl, 1 bsl, 6 sts; tibia II 6 sts; tibia III 1 bsl, 6 sts; tibia IV 1 plumed T, 6 sts. Tarsus I 2 asl, 3 bsl, 1 fam, 1 dtsl, 1 tsl, 17 sts; tarsus II 1 bsl, 1 dtsl, 1 tsl, 16 sts; tarsus III 1 dtsl, 14 sts; tarsus IV 1 dtsl, 13 sts.
Tritonymph (n = 1; Figures 12–14 View Figure 12 View Figure 13 View Figure 14 ) Idiosoma 198 long, 130 wide.
Dorsum ( Figure 12A View Figure 12 ) — Resembling the female; propodosomal shield 56 long, 69 wide; median shield 55 long, 74 wide; setal lengths and distances: at 79, pt 64, lps 27, mps 17, c1
17, c2 16, d1 18, e1 20, f1 22, f2 14, h1 22, h2 15; at-at 21, pt-pt 30, lps-lps 44, mps-mps 14, lps-mps 34, at-lps 18, pt-mps 8, pt-lps 29, at-mps 41, at-pt 42, c1-c1 22, c2-c2 67, d1-d1 32, e1- e1 28, f1-f1 14, f2-f2 25, h1-h1 11, h2-h2 30, c1-c2 22, c1-d1 21, c2-d1 25, d1- e1 20, e1-f1 32, e1-f2 36, f1-h1 25, f1-h2 36, f2-h1 23, f2-h2 32, f1-f2 7, h1-h2 13.
Venter ( Figure 12B View Figure 12 ) — Setal formula of coxal plates I–IV: 5-5-6-5 sts; propodogastral setae (ppgs) and hysterogastral setae hgs (1) equal 7 in length. Genital plates long 30, wide 14; five pairs of genital setae (g1–g5), 6–7 in length; one pairs of aggenital setae ag (1), 6 in length. Three pairs of para-anal setae (pa1–pa3), 15, 15, 7 in length, respectively.
Gnathosoma ( Figures 13A–C View Figure 13 ) — Resembling the female. Palp ( Figure 13A View Figure 13 ) 102 long; trochanter without setae; basifemur with two simple setae (one ventral and one dorsal); telofemur with one distally branched (4 tines) seta; genu with four simple setae (two ventral and two dorsal); tibiotarsus with one smooth sigmoid seta, one rod-like solenidion and five smooth simple setae. Chelicera ( Figure 13B View Figure 13 ) 100 long; cheliceral seta short, 2 in length. Subcapitulum ( Figures 13C View Figure 13 ) 98 long, 60 wide; hg1–hg6 34, 14, 9, 13, 8 and 8 in length, respectively. Distances of hg setae: hg1-hg1 7, hg2-hg2 10, hg3-hg3 12, hg4-hg4 44, hg5-hg5 15, hg6-hg6 38, hg1-hg2 9, hg2-hg3 22, hg3-hg4 15, hg4-hg5 14, hg5-hg6 11.
Legs ( Figure 14A–D View Figure 14 ) — Resembling the female; lengths of leg I–IV: 110, 98, 105, 108. Lengths of tarsus I–IV: 38, 33, 35, 34. T 54 in length. Legs I–IV chaetotaxy: coxae I–IV 5-5-6-5 sts; trochanters I–IV 1-1-2-1 sts; basifemora I–IV 4-5-2-0 sts; telofemora I–IV 5-5-4-3 sts. Genu I 4 asl, 5 sts; genu II 2 asl, 5 sts; genu III 1 asl, 6 sts; genu IV 2 asl, 5 sts. Tibia I 1 asl, 1 bsl, 6 sts; tibia II 6 sts; tibia III 1 bsl, 6 sts; tibia IV 1 plumose T, 4 sts. Tarsus I 1 asl, 3 bsl, 1 fam, 1 dtsl, 1 tsl, 14 sts; tarsus II 1 bsl, 1 dtsl, 1 tsl, 13 sts; tarsus III 1 dtsl, 14 sts; tarsus IV 1 dtsl, 11 sts.
Deutonymph (n = 1; Figures 15–18 View Figure 15 View Figure 16 View Figure 17 View Figure 18 ) Idiosoma 190 long, 135 wide.
Dorsum ( Figure 15A View Figure 15 ) — Resembling the female; propodosomal shield 72 long, 93 wide; median shield 59 long, 90 wide; setal lengths and distances: at 75, pt 67, lps 24, mps 17, c1 14, c2 13, d1 14, e1 17, f1 21, f2 14, h1 25, h2 17; at-at 24, pt-pt 40, lps-lps 50, mps-mps 15, lps-mps 37, at-lps 22, pt-mps 9, pt-lps 31, at-mps 50, at-pt 48, c1-c1 29, c2-c2 80, d1-d1 37, e1- e1 28, f1-f1 13, f2-f2 29, h1-h1 12, h2-h2 35, c1-c2 26, c1-d1 23, c2-d1 32, d1- e1 22, e1-f1 26, e1-f2 27, f1-h1 25, f1-h2 38, f2-h1 23, f2-h2 33, f1-f2 8, h1-h2 16.
Venter ( Figure 15B View Figure 15 ) — Setal formula of coxal plates I–IV: 4-3-4-2 sts; propodogastral setae (ppgs) and hysterogastral setae hgs (1) equal 6 in length. Genital plates long 20, wide 10; three pairs of genital setae (g1–g3), each 6 in length; one pairs of aggenital setae ag (1), 6 in length. Three pairs of para-anal setae pa (1–pa3), 15, 12, 6 in length, respectively.
Gnathosoma ( Figures 16A–C View Figure 16 , 17A–B View Figure 17 ) — Palp ( Figures 16A View Figure 16 , 17B View Figure 17 ) 91 long; basifemur with only one seta, telofemur with one distally branched (3 tines) seta; genu with four simple setae (two ventral and two dorsal); tibiotarsus with one smooth sigmoid seta, one rod-like solenidion and five smooth simple setae. Chelicera ( Figure 16B View Figure 16 ) 93 long; cheliceral seta 3 in length. Subcapitulum ( Figures 16C View Figure 16 , 17A View Figure 17 ) 90 long, 64 wide, four pairs of hypognathal setae (hg), hg1–hg4, 21, 11, 9, 11 in length, respectively. Distances of hg setae: hg1-hg1 8, hg2-hg2
9, hg3-hg3 15, hg4-hg4 43, hg1-hg2 11, hg2-hg3 22, hg3-hg4 15.
Legs ( Figure 18A–D View Figure 18 ) — Resembling the female; all legs with basifemora and telofemora fused, lengths of leg I–IV: 118, 100, 110, 120. Lengths of tarsus I–IV: 37, 30, 39, 39. T 48 in length. Legs I–IV chaetotaxy: coxae I–IV 4-3-4-2 sts; trochanters I–IV 1-1-2-1 sts; basifemora I–IV 2-2-1-0 sts; telofemora I–IV 5-5-4-3 sts. Genu I 3 asl, 5 sts; genu II 2 asl, 5 sts; genu III
1 asl, 5 sts; genu IV 1 asl, 5 sts. Tibia I 1 asl, 1 bsl, 5 sts; tibia II 5 sts; tibia III 1 bsl, 5 sts; tibia IV 1 plumose T, 4 sts. Tarsus I 1 asl, 3 bsl, 1 fam, 1 dtsl, 1 tsl, 13 sts; tarsus II 1 bsl, 1 dtsl, 15 sts; tarsus III 14 sts; tarsus IV 12 sts.
Protonymph (n = 1; Figures 19–21 View Figure 19 View Figure 20 View Figure 21 ) Idiosoma 152 long, 113 wide.
Dorsum ( Figure 19A View Figure 19 ) — Resembling the female; propodosomal shield 60 long, 73 wide; median shield 48 long, 80 wide; setal lengths and distances: at 68, pt 57, lps 20, mps 15, c1
12, c2 10, d1 13, e1 15, f1 22, f2 12, h1 24, h2 14; at-at 22, pt-pt 35, lps-lps 46, mps-mps 16, lps-mps 32, at-lps 19, pt-mps 9, pt-lps 28, at-mps 43, at-pt 43, c1-c1 24, c2-c2 73, d1-d1 31, e1- e1 25, f1-f1 13, f2-f2 24, h1-h1 9, h2-h2 24, c1-c2 23, c1-d1 20, c2-d1 29, d1- e1 22, e1-f1
28, e1-f2 31, f1-h1 24, f1-h2 30, f2-h1 22, f2-h2 25, f1-f2 8, h1-h2 9.
Venter ( Figure 19B View Figure 19 ) — Setal formula of coxal plates I–IV: 3-3-3-1 sts; propodogastral setae (ppgs) and hysterogastral setae hgs (1) equal, 6 in length; one pair of genital papillae. Genital plates long 15, wide 8; one pair of genital setae g (1); 5 in length; aggenital setae ag () absent. Three pairs of para-anal setae (pa1–pa3), 11, 11 and 6 in length, respectively.
Gnathosoma ( Figure 20A–C View Figure 20 ) — Palp ( Figure 20A View Figure 20 ) 74 long; trochanter without setae; basifemur with only one simple seta; telofemur with one distally branched (3 tines) seta; genu with four simple setae (two ventral and two dorsal); tibiotarsus with one smooth sigmoid seta, one rod-like solenidion and five smooth simple setae. Chelicera ( Figure 20B View Figure 20 ) 77 long; cheliceral seta short, 2 in length. Subcapitulum ( Figure 20C View Figure 20 ) 79 long, 49 wide; four pairs of hypognathal setae hg (), hg1–hg4, 20, 8, 5 and 7 in length, respectively. Distances of hg setae: hg1-hg1 7, hg2-hg2 10, hg3-hg3 13, hg4-hg4 32, hg1-hg2 11, hg2-hg3 21, hg3-hg4 13.
Legs ( Figure 21A–D View Figure 21 ) — Resembling the female; all legs with basifemora and telofemora fused; lengths of leg I–IV: 99, 91, 100, 90. Lengths of tarsus I–IV: 33, 30, 28, 28. T absent on tibia IV. Legs I–IV chaetotaxy: coxae I–IV 3-3-3-1 sts; trochanters I–IV 1-1-2-0 sts; basifemora I–IV 2-2-1-0 sts; telofemora I–IV 5-5-4-0 sts. Genu I 3 asl, 5 sts; genu II 1 asl, 5 sts; genu III
1 asl, 5 sts; genu IV 1 asl, 0 sts. Tibia I 1 asl, 1 bsl, 5 sts; tibia II 5 sts; tibia III 1 bsl, 5 sts; tibia IV 0 sts. Tarsus I 2 bsl, 1 fam, 1 dtsl, 1 tsl, 14 sts; tarsus II 1 bsl, 1 dtsl, 15 sts; tarsus III 14 sts; tarsus IV 7 sts.
Larvae — Unknown.
Etymology — The new species name is derived from its collection place Xinning County, Hunan Province, P. R. China.
Remarks — In order to clearly understand the morphological differences among the life stages, chaetotaxy of palp, legs, coxae and genital papillae of protonymph, deutonymph, tritonymph, male and female are presented in Table 1.
Additional setae on legs, genital plates and subcapitulum were observed in some female paratypes: there is one additional seta close to 1b present on the right coxa I in one female specimen ( Figure 4A View Figure 4 ); one additional genital seta is present on the right side in another female specimen ( Figure 4B View Figure 4 ); one additional seta posterior to hg5 is present on the right side of the subcapitulum in one female specimen, while in another female, hg6 is absent on the left side of the subcapitulum ( Figures 6C–D View Figure 6 ).
The new species is close to P. trioxys (known only from adult female) but differs from it by following characteristics: (1) palp telofemur with one branched (four tines) seta vs (. this seta with three tines in P. trioxys ); (2) setal formula of coxal plates I–IV: 6-6-7-7 sts (vs. 7-5-6-7 sts
in P. trioxys ); (3) eight pairs of genital setae vs (. seven in P. trioxys ) ( Lin & Zhang, 1998).
The new species also resembles P. mindanensis (known only from adult female) but differs from it by following characteristics: (1) palp telofemur with one branched (four tines) seta (vs. unbranched in P. mindanensis ); (2) genua III and IV with one and two asl respectively (vs. genua III and IV without asl in P. mindanensis ); (3) tibia III with 1 bsl (vs. 0 bsl on this segment in P. mindanensis ) ( Corpuz-Raros, 1996).
Type series — Holotype, female was collected from rotten wood, Shunhuangshan National Nature Reserve (N26°14′2.76″, E111°20′2.76″, elevation 992 m), Xinning County, Hunan Province, China, on 27 August , 2017, by Mao-Yuan Yao and Yan Shen, slide No.: HN-CU- 201708272601 GoogleMaps . Paratypes, 20 females, the same data as the holotype, slides No.: HN-CU- 201708272601–HN-CU-201708272621 GoogleMaps ; one male, one tritonymph, one deutonymph and one protonymph, the same data as the holotype, slides No.: HN-CU-201708272622–HN-CU- 201708272625, respectively. All the slides are deposited in Institute of Entomology, Guizhou University, Guiyang, P. R. China ( GUGC) GoogleMaps .
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Departamento de Geologia, Universidad de Chile |
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