Torrenticola neoungeri Pešić & Asadi & Etemadi & Smit 2019, sp. nov.
Creators: name: Pešić, Vladimir
name: Asadi, Mahdieh
name: Etemadi, Isa
name: Smit, Harry
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Prostigmata
Torrenticolidae
Torrenticola
Torrenticola neoungeri

description: Torrenticola neoungeri sp. nov.
(Figs. 2, 4 A–B)
Type series. Holotype male (RMNH), dissected and slide mounted, Iran, Khuzestan Province, Andika-Taluk, 32°17'53''N, 49°19'51''E, 29 September 2016, coll. Isa Etemadi. Paratypes (SBUK): same data as holotype, two males, one juvenile male dissected and slide mounted.
Compared material. Torrenticola ungeri, CG4 Montenegro, Kolašin municipality, River Mrtvica, 11 July 1999 leg. Pešić 2/0/0 (mounted).
Diagnosis. Characters of the Torrenticola ungeri species group (shoulder platelets fused or partially fused with dorsal plate, Cxgl–4 posterior to Cxgl–2); dorsal shield with colour pattern as illustrated in Fig. 4 A–B; tip of Cx-I with numerous long setae; excretory pore on a line with Vgl–2; ventral margins of P-4 witht fine serration.
Description. Male. Idiosoma elongated-oval (dorsal shield L/W ratio 1.4); shoulder platelets fused with dorsal plate, but suture line visible (Fig. 2A); dorsal shield with colour pattern as illustrated in Figs. 4 A–B; gnathosomal bay U-shaped, proximally rounded; tip of Cx-I with numerous long setae; Cxgl–4 posterior to Cxgl–2; medial suture line of Cx-II+III relatively short; posterior suture lines of Cx-IV medially starting from genital field at a nearly 90° angle to main body axis; genital field lateral margins slightly diverging anteriorly, anterior margin forming a obtuse angle, posterior margin rounded; ejaculatory complex conventional in shape (with well developed anterior keel and proximal arms); excretory pore on the line with Vgl–2; gnathosoma ventral margin curved, rostrum well developed; P-2 ventral margin slightly curved, ventrodistal protrusion slender; ventral margins of P-4 with fine serration and well developed ventral tubercles, bearing one longer, and three shorter setae (Figs. 2 C–E).
Measurements (holotype, in parentheses measurements of T. ungeri from Mrtvica River, Montenegro, n = 2)— Idiosoma (ventral view: Fig. 2B) L 788 (675–719), W 625 (550); dorsal shield (Figs. 4 A–B) L 661 (572–581), W 481 (454–459), L/W ratio 1.38 (1.26–1.27); dorsal plate L 622 (541–553); frontal plate L 147–150 (134–147), W 58–59 (48–56), L/W ratio 2.47–2.6 (2.4–3.0). Gnathosomal bay L 147 (134–146), Cx-I total L 297 (269–288), Cx-I mL 150 (134–141), Cx-II+III mL 81 (70–72); ratio Cx-I L/Cx-II+III mL (2.04–3.84); Cx-I mL/Cx-II+III mL (1.91–1.96). Genital field L/W 150/128 (147/130–131), ratio 1.17 (1.12–1.13); ejaculatory complex [in paratype] L 219 (161– 164); distance genital field-excretory pore 175 (122–153), genital field-caudal idiosoma margin 253 (184–202). Gnathosoma vL 341 (300–303), chelicera L 397 (350–366); palp total 351 (327–329), dL/H, dL/H ratio: P-1, 42/36, 1.17 (39/31–33, 1.19–1.28); P-2, 118/58, 2.04 (100–102/47–52, 1.97–2.15); P-3, 64/56, 1.15 (63/48–51, 1.23–1.29); P-4, 102/39, 2.6 (102–106/34–36, 2.95); P-5, 25/17, 1.45 (19–23/14–16, 1.36–1.5); P-2/P-4 ratio 1.15 (0.96–0.98).
Female. Unknown.
Etymology. Named for its resemblance with Torrenticola ungeri.
Remarks. The new species belongs to the Torrenticola ungeri —species complex characterized by the shoulder platelets fused or partially fused with the dorsal plate and Cxgl–4 located posterior to Cxgl–2 (Wiles 1997). This complex include two Palaearctic species: Torrenticola ungeri (Szalay, 1927) and T. tyrrhenica Gerecke & Di Sbatino, 2013 known from Sicily and Corsica (Gerecke & Di Sabatino 2013). The presence of a group of long setae on the tip of Cx-I, and P-4 with a fine ventral serration, makes the new species similar to Torrenticola ungeri (Szalay, 1927), a species widely distributed in the Palaearctic (Di Sabatino et al. 2010). The latter species can be separated by the more roundish dorsal shield, the posterior suture line of Cx-IV extending more beyond the posterior margin of the genital field, the excretory pore lying posterior to Vgl–2 and P-3 with a fine ventral serration (compare Figs. 2 C–D with 3B).
Distribution. Iran: known only from the locus typicus in Khuzestan Province.
description: Published as part of Pešić, Vladimir, Asadi, Mahdieh, Etemadi, Isa & Smit, Harry, 2019, New records of water mites (Acari: Hydrachnidia) from the Khuzestan Province (South Iran) with description of three new species, pp. 550-558 in Zootaxa 4559 (3) on pages 551-552, DOI: 10.11646/zootaxa.4559.3.5, http://zenodo.org/record/2627233