Storchia yazdaniani Bagheri, 2011

Bagheri, M., Shirinbeik Mohajer, S., Saboori, A., Asadeh, G. A. & Ueckermann, E. A., 2011, Storchia Yazdaniani N. Sp., A New Species Of The Genus Storchia Oudemans, 1923 (Acari: Prostigmata: Stigmaeidae) From Northern Iran, Acarologia 51 (1), pp. 87-91 : 90-91

Storchia yazdaniani Bagheri n. sp.

( Figures 1-2 )

Diagnosis

Prodorsal shield reticulated posteriorly; setae ve very long and reaching posterior end of prodorsal shield; dorsum with 14 pairs of setae; trochanter III with one seta; femur IV with two setae; dorsal hysterosomal setae c1 nearly 1/4 distance of c1 – c1; vi /(vi – vi) 0.75; c1 /(c1 – c1) 0.25; c1 – c1: d1 – d1: e1 – e1: f1 – f1 = 1.4: 1: 1: 1.4.

Description

Female (n=5) — Holotype (measurements of paratype in parentheses): Idiosoma oval, length of body (excluding gnathosoma) 538 (520 – 540); length of gnathosoma 110 (105 – 114); width of body 325 (320 – 340); length of leg I 238 (230 – 250); leg II 200 (200 – 215); leg III 200 (188 – 205); leg IV 225 (220 – 238).

Dorsum — ( Figure 1A ): Prodorsum with a long prodorsal shield, reticulated posteriorly and smooth anteriorly, bearing two pairs of setae (vi and ve); ve very long, 4 times longer than vi and reaching posterior end of prodorsal shield; eyes absent; setae sci and sce on integument; opisthosoma with 6 pairs of setae (c1, d1, d2, e1, e2 and f1); suranal shield divided and with two pairs of setae (h1 and h2); setae c2 and h3 situated ventrolateraly; setae c2 at least 2 times longer than other dorsal setae excluding ve; length of dorsal setae vi 32 (30-35); ve 120 (115 – 122); sci 42 (40 – 45); sce 35 (35 – 39); c1 28 (27 – 29); c2 105 (95 – 104); d1 25 (24 – 25); d2 32 (30 – 33); e1 24 (23 – 27); e2 32 (30 – 32); f1 27 (26 – 30); h1 27 (27 – 33); h2 37 (36 – 40); h3 30 (27 – 30); distances between dorsal setae: vi – vi 40 (40 – 45); ve – ve 55 (54 – 58); vi – ve 27 (27 – 30); sci – sci 116 (115 – 120); sce – sce 195 (184 – 194); ve – sce 52 (49 – 53); sci – c1 92 (92 – 95); sce – c2 55 (55 – 62); c1 – c1 110 (109 – 114); c1 – c2 65 (67 – 70); c2 – c2 285 (280 – 290); c1 – d1 65 (64 – 67); d1 – d1 80 (77 – 81); d1 – d2 90 (94 – 100); d1 – e1 92 (90 – 97); d1 – e2 109 (100 – 108); e1 – e1 80 (80 – 88); e1 – f1 62 (55 – 64); f1 – f1 110 (107 – 111); f1 – h1 62 (60 – 65); f1 – h2 70 (65 – 70); h1 – h1 59 (55 – 61); h2 – h2 112 (110 – 117); ratios: vi /(vi – vi) 0.8; c1 /(c1 – c1) 0.25; d1 /(d1 – d1) 0.31; e1 /(e1 – e1) 0.30; f1 /(f1 – f1) 0.25; h1 /(h1 – h1) 0.45; h2 /(h2 – h2) 0.33; c1 – c1: d1 – d1: e1 – e1: f1 – f1 = 1.4: 1: 1: 1.4.

Venter — ( Figure 1B ): Venter with transverse striate between coxisternal II – III, length of setae 1a 52 (50 – 55), 1b 35 (34 – 37), 1c 55 (50 – 57), 2b 95 (90 – 95), 2c 55 (45 – 50), 3a 90 (90 – 96), 3b 35 (35 – 37), 3c 30 (30 – 32), 4a 50 (45 – 50), 4b 30 (30 – 32), 4c 25 (25 – 27); aggenital area with four pairs of setae (ag1 – ag4), ag1 45 (44 – 45), ag2 62 (60 – 64), ag3 90 (88 – 92) and ag4 50 (44 – 50); genital valves with three pairs of genital setae (g1 – g3), g1 25 (25 – 27), g2 22 (22 – 23), g3 22 (22 – 23); pseudanal valves with three pairs of pseudanal setae (ps1 – ps3), ps1 22 (22 – 24); ps2 22 (22 – 24); ps3 22 (23 – 24).

Gnathosoma — Subcapitulum ( Figure 1C ) with two pairs of subcapitular setae (m and n), m 40 (38 – 41), n 80 (78 – 82) and two pairs of adoral setae (or1 and or2), or1 25 (23 – 25), or2 22 (21 – 22); distances m – m 38 (37 – 39), n – n 40 (39 – 40), m – n – 17 (17 – 18); palpi ( Figure 1D ) five segmented; palptarsus with 4 simple setae + 1 ω + 2 subterminal spine-like eupathidia + 2 terminal eupathidia; palptibia with three setae + one seta-like accessory claw + one well-developed claw; palpgenu with 2 setae; palpfemora with three setae; palptrochanter without setae.

Legs — ( Figures 2A–D ): Solenidia ’ on tibiae I absent; number of setae and solenidia on legs I – IV: coxae 2-2-2-2; trochanters 1-1-1-1; femora 4-4- 3-2; genua 4+1 κ -4-2-2; tibiae 5+1 ’p -5+1 ’p -5+1 ’p - 5+1 ’p; tarsi 13+1 ω -9+1 ω -7+1 ω -8+1 ω; lengths of solenidia: Iω 15 (14 – 16), IIω 11 (10 – 11); IIIω 6 (6 – 7); IV ω 5 (5 – 6); ’p 28 (27 – 29); II’p 24 (24 – 25); III’p 19 (19 – 20); IV ’p 17 (15 – 17).

Male and immature stages — Unknown.

Remarks — Storchia yazdaniani n. sp. resembles to S. robustus but can be separated by: (1) – ve is very long, (115 – 122µm), and which can reach the posterior end of prodorsal shield (vs 55 – 62 µm in S. robustus ); (2) – Humeral setae c2 long, (95 – 104 µm), and more than 3 times the length of c1 (vs 32 – 37 µm and 1.4 times length of c 1 in S. robustus ); (3) – dorsal hysterosomal setae c1 nearly 1/4 distance of c1 – c1 (vs 1/3 distance c1 – c 1 in S. robustus ); (4) ratio 1a: 3a: 4a = 1: 1.8: 1 (vs 1: 3.2: 1); (5) – ratio ag1: ag2: ag3: ag4 = 1: 1.4: 2: 1.1 (vs 1.5: 1.6: 2.7: 1).

Etymology — This species is named in honour of Dr. Mohsen Yazdanian, Gorgan University of Agricultural Sciences and Natural Resources and the friend of the first author

Type material — Holotype and 4 paratype females of S. yazdaniani n. sp. were collected from soil and moss, 9 May 2010, in Gorgan (Golestan Province, Iran) by Shiela Shirnbeik Mohajer. The holotype and 1 paratype females were deposited in the Arachnida Collection of Plant Protection Research Institute ( Pretoria , South Africa); 2 paratype females were deposited in the Acarological Collection of the Department of Plant Protection , Faculty of Agriculture , University of Maragheh ( Iran) and 1 paratype female was deposited in Jalal Afshar museum (Karaj, Iran).

Figures

FIGURE 1: Storchia yazdaniani n. sp. (Female) A – Dorsal view of body. B – Ventral view of body. C – Subcapitulum. D – Palp.

FIGURE 2: Storchia yazdaniani n. sp. (Female) A – Leg I, femur-tarsus. B – Leg II, femur-tarsus. C – Leg III, femur-tarsus. D – Leg IV, femur-tarsus.