Paraplonobia (Anaplonobia) tabukensis, Kamran, Muhammad, Mirza, Jawwad Hassan & Alatawi, Fahad Jaber, 2016

Kamran, Muhammad, Mirza, Jawwad Hassan & Alatawi, Fahad Jaber, 2016, The genus Paraplonobia Wainstein and Neopetrobia Wainstein (Acari, Trombidiformes, Tetranychidae) from Saudi Arabia: new species, new records and key to the world species of Paraplonobia, ZooKeys 598, pp. 27-55 : 36

Taxon classification Animalia Prostigmata Tetranychidae

Paraplonobia (Anaplonobia) tabukensis sp. n. Figs 29-30, 31, 32, 33-36

Diagnosis.

Dorsal setae slightly lanceolate, densely serrate, not present on tubercles and distinctly shorter to the distances of setae next behind, prodorsum entirely with longitudinal striaitons, hysterosomal striations closely spaced, peritremes complex anastomosed distally, stylophore slightly rounded anteriorly, leg I shorter than body length, number of setae on femur I–IV 8 –6–3– 3, number of setae on genu I–IV 4 –5–3– 3.

Description of holotype female

(n = 3). Measurements of holotype followed by 2 paratypes (in parenthesis) (Figs 29-36).

Dorsum (Fig. 29). Body rounded; length of idiosoma 483 (480-490), maximum width 445 (440-450), length of body (gnathosoma + idiosoma) 595 (590-610). Propodosoma medially with weak and laterally with strong longitudinal regular striations; hysterosomal striations medially transverse and closely spaced, laterally longitudinal irregular. Dorsal setae slightly lanceolate, densely serrate, not present on tubercles and and distinctly shorter to the distances of setae next behind, dorsocentral setae (c1, d1 and e1) almost 1/3 to the distance of setae next behind. Length of dorsal setae: v2 34 (32-36), sc1 29 (28-31), sc2 30 (28-32), c1 28 (26-30), c2 26 (24-28), c3 29 (28-32), d1 23 (21-25), d2 22 (21-24), e1 21 (20-23), e2 22 (21-24), f1 23 (21-24), f2 26 (24-27), h1 27 (25-29). Distance between dorsal setae: v2-v2 89 (85-90), v2-sc1 68 (65-690), sc1-sc2 68 (67-70), sc1-sc1 204 (202-206), sc2-sc2 301 298-302), c1-c1 138 (135-140), c1-c2 91 (89-92), c2-c3 79 (75-80), c2-c2 327 (325-328), c3-c3 424 (422-426), d1-d1 119 (118-120), d1-d2 91 (89-92), d2-d2 295 (292-298), c1-d1 88 (86-89), c3-d2 110 (109-112), e1-e1 27 (25-28), e1-e2 85 (84-86), e2-d2 85 (84-86), e2-e2 229 (228-231), f1-f1 78 (76-80), f2-f2 113 (110-114), f1-f2 35 (33-36), f1-d1 82 (81-84), h1-h1 53 (52-56).

Venter (Fig. 30). Idiosoma ventrally with transverse simple striations from setae 1a to 3a; longitudinal regular between setae 3a and 4a; transverse posterior to setae 4a; striations longitudinal regular anterior to aggenital setae (ag). Length of intercoxal and coxal setae: 1a 40 (38-42), 3a 32 (31-34), 4a 32 (30-35), 1b 46 (44-47), 1c 32 (31-34), 2b 30 (29-34), 2c 29 (28-31), 3b 32 (31-34), 4b 32 (31-35); aggenital setae (ag) 42 (41-45), ag–ag 23 (21-25); genital setae two pairs, g1 43 (40-44), g2 39 (35-40), g1-g1 52 (50-55), g2-g2 60 (58-64), g1-g2 12 (10-13); anal setae three pairs, ps1 20 (18-21), ps2 26 (24-27), ps3 28 (27-29), ps1-ps1 23 (20-24), ps2-ps2 32 (31-35), ps3-ps3 23 (21-26); para-anal setae two pairs, h2 27 (26-28), h2- h2 11 (10-13), h3 32 (31-34), h3-h3 28 (27-29).

Gnathosoma (Figs 31-32). Stylophore rounded anteriorly. Peritremes small compact anastomosed distally (Fig. 31). Scapular setae m 28 (27-29), m–m 37 (26-39). Palp femur and genu each with one seta, palp tibia with three setae, tibial claw strongly curved; palp tarsus with three setae, three eupathidia, one solenidion (Fig. 32).

Legs (Figs 33-36). Length of legs I–IV (without coxae) 450, 282, 345, 408 respectively. Leg I shorter than body length. Number of setae and solenidia (in parenthesis) on legs I–IV: coxae 2 –2–1– 1, trochanters 1 –1–1– 1, femora 8 –6–3– 3, genua 4 –5–3– 3, tibiae 13(1) –9–8– 8; tarsi I with 10 tactile setae, two sets of duplex setae at distal end, all tactile setae well proximal to duplex setae, two eupathidia; tarsi II with 7 tactile setae, one set of duplex setae, two eupathidia; tarsi III with 11 tactile setae, one set of duplex setae,; tarsi IV with 11 tactile setae one set of duplex setae,. True claws pad like each with one pair of tenant hair; empodium pad-like with two rows of small tenant hairs.

Male. Not in collection.

Etymology.

The specific epithet is derived from the region of Saudi Arabia, Tabuk, from where it was collected.

Type material.

Holotype female, two paratype females, Haloxylon salicornicum ( Amaranthaceae ), 30 km Tabuk road, Sharma, Tabuk region, SA, 28°03.479'N, 035°17.186'E, October, 19, 2015, coll. M. Kamran and J.H. Mirza.

Remarks.

The Paraplonobia (Anaplonobia) tabukensis sp. n. closely resembles Paraplonobia (Anaplonobia) theroni ( Meyer 1974) because both species share the following set of similar characters; dorsal body setae, lanceolate and distinctly shorter to the distances of setae next behind, prodorsum entirely with longitudinal striaitons, hysterosomal striations closely spaced, peritremes complex anastomosed distally ( Meyer 1974, 1987). The new species differs from Paraplonobia (Anaplonobia) theroni by shape of stylophore anteriorly (rounded vs. slightly indented), number of setae on femur I–IV (8 –6–3– 3 vs. 9 –6–4– 4), number of setae on genu I–IV (4 –5–3– 3 vs. 5 –5–6– 6), number of setae on tibia III (8 vs. 6) and on tarsi I–II excluding duplex setae and solenidia (10-7 vs. 18-14) in Paraplonobia (Anaplonobia) theroni .