Torrenticola lushanensis, Gu & Jin & Guo, 2020

Gu, Xinyao, Jin, Daochao & Guo, Jianjun, 2020, New water mites of Torrenticolidae (Acari, Hydrachnidia) from Jiangxi Province, P. R. China, Acarologia 60 (2), pp. 488-500 : 494-496

publication ID	https://doi.org/ 10.24349/acarologia/20204381
persistent identifier	https://treatment.plazi.org/id/8B0587CA-FFD0-9829-FE6B-57DE2052C865
treatment provided by	Marcus
scientific name	Torrenticola lushanensis
status	sp. nov.

Treatment

Torrenticola lushanensis sp. nov.

Zoobank: C9833D7C-3471-4870-8801-E0EDE1D330A9

( Figures 5–8 View Figure 5 View Figure 6 View Figure 7 View Figure 8 )

Material examined — Holotype male, No. JX-TO-20190708, Lushan , Jiangxi Province,

P. R. China (29°33′29′′N, 116°0′28′′E, 1021 m a.s.l.), collected by Haitao Li, Min Ao, 6 July

2019. Paratype: 0/1/0, No. JX-TO-20190709, same data as holotype.

Diagnosis — Idiosoma elliptical, L/W ratio 1.5. Dorsal plate 4+1; E 4 at the same level as the 4 th pair of acetabula; the line of primary sclerotization absent, and Ap on the same line with V 2, and posterior to V 1; P-4 with two separated ventral extensions, each with one long seta.

Description

Male (n = 1) – Idiosoma elliptical, L 791, W 545, L/W ratio 1.5. Dorsal plate 4+1 ( Figure 5A View Figure 5 ), dorsal shield L 635, W 493, dorsal plate L 591, frontal platelets L 144, W 58, shoulder platelets L 195, W 61. Infracapitular bay U-shaped and wide, depth 172; Cx-I L 333, mL 169, Cx-II+III mL 67; genital field L 173, W 132, distance between genital field and Ap 131; genital field elongated and oval, L/W ratio 1.3, genital flaps with eight pairs of setae at the margins; E 4

at the same level as the 4 th pair of acetabula; the line of primary sclerotization absent, and Ap on the same line with V 2, and posterior to V 1 ( Figure 5B View Figure 5 ). P-1 with one dorsal seta; P-2 with three dorsal setae, and one ventral seta on the ventral prolongation; P-3 with two dorsal setae and one ventrodistal prolongation with one long seta; P-4 with two separated ventral extensions, each with one long seta ( Figure 5C View Figure 5 ). Gnathosoma vL 349, dL 277; dorsal and ventral apodemes short, especially the ventral one; chelicera bs L 393, claw L 43. Ejaculatory complex (Figure

5D): L 197, aL 163. dL of palp segments: P-1, 48; P-2, 91; P-3, 50; P-4, 99; P-5, 20. Legs ( Figure 6 View Figure 6 ): dL of leg segments: I-L-1–6: 59, 78, 90, 106, 100, 107; II-L-1–6: 68, 82, 85, 102,

123, 131; III-L-1–6: 67, 86, 85, 108, 147, 151; IV-L-1–6: 126, 116, 127, 157, 174, 164.

Female (n = 1) – Body features same as the male except: P-2 with longer ventrodistal prolongation; P-4 with one long and two short setae on the ventral extensions. Idiosoma L 817, W 557. Dorsal shield L 658, W 489, dorsal plate L 616, frontal platelets L 147, W 50, shoulder platelets L 189, W 64; Cx-I L 329, mL 113, Cx-II+III mL 93; genital field L 172, W

124, distance between genital field and Ap 145.Gnathosoma vL 357, dL 282; infracapitular bay depth 221; chelicera bs L 387, claw L 48; L of palp segments: P-1, 50; P-2, 95; P-3, 57; P-4,

107; P-5, 21. L of leg segments: I-L-1–6: 43, 62, 91, 102, 110, 99; II-L-1–6: 54, 104, 79, 102,

120, 117; III-L-1–6: 69, 77, 86, 130, 153, 148; IV-L-1–6: 122, 99, 120, 143, 151, 138.

Habitat — Streamlet, about 1–2 m wide, 0.3–0.4 m depth, located between two mountains.

Remarks — Due to the shape of dorsal shield, ventral plate and infracapitular bay; and rostrum slightly curved towards the dorsum, Torrenticola lushanensis sp. nov. is similar to T. columbiana Goldschmidt, 2007 ( Goldschmidt 2007) . Though there are obvious differences in: (1) P-2 long and nearly equal in length to P- 4 in the new species, P-2 longer than P- 4 in T. columbiana ; (2) the ventral extensions of P-2, 3 blunt in this new species, but pointed in T. columbiana ; (3) D 2 on the same level with the muscle scar in this new species, but anterior to the muscle scar in T. columbiana .

Etymology — The specific epithet is named after the place (Lushan) where this new species was collected.

Distribution – China (Jiangxi).