Torrenticola planusirostrum, 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 : 496-500

publication ID

https://doi.org/ 10.24349/acarologia/20204381

persistent identifier

https://treatment.plazi.org/id/8B0587CA-FFDE-982D-FE6B-53E42041CC55

treatment provided by

Marcus

scientific name

Torrenticola planusirostrum
status

sp. nov.

Torrenticola planusirostrum sp. nov.

Zoobank: 604AAB08-586D-477D-BF09-1887A5B92411

( Figure 9 View Figure 9 )

Material examined — Holotype female, No. JX-TO-20190710, Yueliangwan Mountain Park , Jiangxi Province, P. R. China (28°45′10′′N, 115°44′20′′E, 119 m a.s.l.), collected by GoogleMaps

Haitao Li and Min Ao, 11 July 2019.

Diagnosis – Idiosoma elliptical, L/W ratio 1.4. Dorsal plate 4+1 ( Figure 9A View Figure 9 ); E 4 at the same level as the 4 th pair of acetabula; the line of primary sclerotization absent, and Ap posterior to

V 1 and V 2; P-1 and P-2 dorsal setae absent, P-2 with a ventral seta on the ventral prolongation; dorsal apodeme almost absent, ventral apodeme blunt and long; rostrum flat and parallel to the ventral apodeme.

Description

Female (n = 1) – Idiosoma elliptical, L 589, W 428, L/W ratio 1.4. Dorsal plate 4+1 (Figure

9A), dorsal shield L 453, W 378, dorsal plate L 409, frontal platelets L 109, W 61, shoulder platelets L 182, W 75. Infracapitular bay U-shaped and wide, depth 134; Cx-I L 247, mL

115, Cx-II+III mL 26; genital field L 171, W 151, distance between genital field and Ap 94; Genital field L/W ratio 1.1; E 4 at the same level as the 4 th pair of acetabula; the line of primary sclerotization absent, and Ap posterior to V 1 and V 2, ( Figure 9B View Figure 9 ). P-1 and P-2 dorsal setae absent, P-2 with one ventral seta on the ventrodistal prolongation; P-3 with two dorsal setae and one ventrodistal prolongation with one long seta on it; P-4 with one dorsal seta and two ventral setae ( Figure 9C View Figure 9 ). Gnathosoma ( Figure 9D View Figure 9 ) dorsal apodeme almost absent, ventral apodeme blunt and long, rostrum flat and parallel to the ventral apodeme; vL 256, dL 211, chelicera bs L 249, claw L 44. L of palp segments: P-1, 43; P-2, 102; P-3, 66; P-4, 86; P-5, 10. Legs ( Figure 9E–H View Figure 9 ): L of leg segments: I-L-1–6: 40, 53, 46, 60, 62, 74; II-L-1–6: 40, 60, 46, 61, 62, 78; III-L-1–6: 43, 77, 49, 63, 80, 91; IV-L-1–6: 87, 86, 77, 102, 112, 104.

Male – Unknown.

Habitat — Ditch, about 1 m wide, 0.2–0.3 m depth, with many small stones at the bottom.

Remarks — Torrenticola planusirostrum sp. nov. is characterized by dorsal apodeme almost absent, ventral apodeme blunt and long, rostrum flat and parallel to the ventral apodeme. In addition, P-1 and P-2 dorsal setae absent. Although we only have one specimen, because of its unique gnathosoma shape, we considered this is a new species.

Etymology — The specific epithet is neuter in gender and derived from Latin words, planus

= flat, and rostrum = beak and refers to flat rostrum, parallel to the ventral apodeme; used as a noun in apposition.

Distribution — China (Jiangxi).

R

Departamento de Geologia, Universidad de Chile

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