Atractides reinhardi, Gülle, Pinar, Gülle, İskender & Boyaci, Yunus Ömer, 2015

Gülle, Pinar, Gülle, İskender & Boyaci, Yunus Ömer, 2015, A new Atractides Koch (Acari: Hydrachnidia, Hygrobatidae) species from southwestern Turkey, Zootaxa 3957 (2), pp. 246-248 : 246-248

Atractides reinhardi n. sp.

Type series. Holotype, female, a pristine spring with dense emergent vegetation ( Nasturtium officinale ) with sandy and muddy bottom, of 5–10 cm depth; 37° 9.44' N, 29° 45.92' E, 1411 m a.s.l., 18.08.2014, Çavdır, Burdur. Turkey. Leg. İ. Gülle. Paratypes: one female, same data as holotype. Paratypes: two females, spring with rich vegetation dominated by Nasturtium officinale and sandy and muddy bottom, of depth lower than 10 cm, 37° 23.07' N, 29° 39.52' E, 1695 m a.s.l., 14.09.2013, a small spring above Elmalı highland, Eşeler Mountain, Tefenni, Burdur, Turkey. Leg. İ. Gülle. Paratypes: two female, historical İncirhan fountain (from Seljuk period) fed by karstic sources with aquatic bryophytes and water cress, rocky bottom and depth of below 5 cm, 37° 28.62' N, 30° 32.08' E, 992 m a.s.l., 20.09.2014, Bucak, Burdur, Turkey. Leg.İ. Gülle Type material dissected and slide mounted in Hoyer’s fluid, deposited at the Faculty of Science and Arts, Mehmet Akif Ersoy University, Burdur, Turkey.

Diagnosis. Integument striated; P–2 with strongly convex ventral surface, covered by fine denticulation; Vgl–1 not fused to Vgl–2; P-4 sword seta near distoventral hair; S–1 much longer than S–2, I–L–6 slender and curved.

Description. Female (holotype, in parentheses variability of the paratypes given as mean, n = 5): Idiosoma L/W 734(730)/602(600); integument striated. Muscle attachments unsclerotized ( Fig. 1 a).

Coxal field: L 307 (304), Cx-I+II W 301 (297), Cx-I+II L 192 (190), Cx-I+II mL 102 (100), Cx-III W 433 (430); capitular bay 108 (105).

Genital plates ( Fig. 1 a) L/W 96(94)/30(30); gonopore L 120 (118), Ac 1–3 L 36, 35, 34; the distance between gonopore and excretory pore 144.

Excretory pore smooth; Vgl–1 not fused to Vgl–2.

I-L-5: dL 210 (206), vL 125(123), dL/vL ratio 1.68 (1.67), HA– HC 64,67,95, dL/HB ratio, 3.13; S–1 L 130, L/W ratio 13, S-1 long and slender, much longer than S–2, S-2 L 88, L/W ratio 8, S-1-2 interspace 47 (46); L ratio S–1/2 1.47. I–L–6 slender and curved ( Fig. 1 b), L 177 (173) HA–HC 22, 22, 23; L I–L–5/6 ratio 1.18

Palp: total L 335 (331), dL: 32(31)–80(78)–88(86)–102(103)–33(33), H: 36(33)–63(61)–48(47)–32(32)–13(12). P– 1–5 L/H ratio: 0.88, 1.26, 1.83, 3.1, 2.5; L ratio P–2/4 0.78 (0.75); P–2 with strongly convex ventral surface, covered by fine denticulation ( Fig. 1 c). Capitulum L/W 132 (130)/128 (125) ( Fig. 1 d), chelicera 179(177) ( Fig. 1 d).

Etymology. The new species is named after Reinhard Gerecke (Tübingen), a respected acarologist who revised the Western Palearctic Atractides species.

Remarks. Due to shape of the P–2 with strongly convex ventral surface, covered by fine denticulation, Atractides reinhardi n. sp. resembles A. denticulatus (Walter, 1947) . The latter species belongs to the ‘cisternarum’ group of species and differs in having the muscle attachments, I–L–5 with S–1 and S–2 similar in shape, narrow interspace, sclerotized excretory pore, short male gonopore restricted to the anterior part of the genital field, and P–4 with sword seta near proximoventral seta ( Gerecke 2003).

Figures

FIGURE 1. Atractides reinhardi n. sp., female: a) Idiosoma ventral b) I – L – 5 – 6 c) Palp d) Capitulum.