Favognathus hyrcanensis, Mohajer & Bagheri & Yazdanian & Saboori & Saeej, 2014

Mohajer, S. S., Bagheri, M., Yazdanian, M., Saboori, A. & Saeej, S. P., 2014, Favognathus Hyrcanensis N. Sp., A New Species Of The Genus Favognathus (Acari: Trombidiformes: Cryptognathidae) From Northern Iran, Acarologia 54 (2), pp. 193-199 : 194-197

Favognathus hyrcanensis n. sp. Shirinbeik Mohajer and Bagheri ( Figures 1-3 )

Diagnosis — Anterior margin of the hood denticulated; dorsal shield completely ornamented with reticulations; reticular cells with 4 – 10 peripheral pores and short striae, pores distributed evenly in all reticulation cells; dorsoventrally with four slit-like cupules; dorsum with two pairs of clusters; ventral shield with lateral reticulation, fine striae and pores; intercoxal area striate; femora I- IV: 4-3-2-2; genua I-IV: 5(+ κ)-4(+ κ)-2-3 tarsi I-IV: 15(+ω1+ω2)-12(+ω1+ ω2)-9(+ω)-9(+ω).

Description — Female (n=4)- Color red in life. Length of body (including gnathosoma) (the ranges of measurements are in the parentheses): 300 (313 – 345); Length of body (excluding gnathosoma): 260 (283 – 290); width of body: 195 (190 – 210); leg I: 225 (235 – 250), leg II: 175 (180 – 211), leg III: 188 (183 – 200), leg IV: 220 (208 – 233).

Dorsum ( Fig. 1A ) — Anterior margin of the hood denticulated; hood with 6-7 dimples in each longitudinal row. Dorsal shield completely ornamented with reticulations except region beside setae h1, reticular cells with 4-10 peripheral pores and short striae, pores distributed evenly in all reticulation cells; dorsum with 11 pairs of simple setae, one pair of eyes and one pair of postocular bodies laterally between setae sci and sce; dorsal body with three pairs of slit-like cupules as follows: ia between setae sce and c1, im beside setae e2 and ip beside setae h2; clusters of reticulated cells associated with setae c1 and d1 present, these rosette patterns consist of 6-8 cells, of which one of them arrange as central cell; anal opening dorsoventrally, with three pairs of setae (ps1 - 3). Length of dorsal setae and their distances: vi: 17 (20 – 35); ve: 31 (30 – 34); sci: 35 (38 – 39); c1: 44 (43 – 45); sce: 28 (29 – 43); d1: 40 (45 – 50); e1: 45 (43 – 50); e2: 40 (38 – 52); f1: 43 (35 – 44); h1: 28 (35 – 41); h2: 30 (27 – 43); vi-vi: 32 (33 – 39); vi -ve: 17 (15 – 17); ve -ve: 34 (35 – 41); ve -sci: 10 (13 – 20); sci -sci: 52 (54 – 65); c1-c1: 64 (70 – 74); sce – sce 101 (102 – 110) c1-sce: 18 (18 – 22); d1-d1: 108 (120 – 130); d1-e1: 42 (50 – 54); e1-e1: 75 (80 – 90); e1-e2: 21 (20 – 23); e2-e2: 95 (95 – 114); e1-f1: 53 (50 – 60); f1-f1: 35 (35 – 45); f1-h1: 28 (34 – 35); h1-h1: 16 (15 – 19); h1-h2: 29 (21 – 30); h2-h2: 72 (70 – 78).

Venter ( Fig. 1B ) — Prosternal apron wedgeshaped with 13-15 foveolae; venter with 4 pairs of ventral setae (1a, 3a, 4a and 4c); genital opening with 2 pairs of genital (g1 - 2) and 2 pairs of aggenital (ag1- 2) setae; ventral shield with lateral reticulation, fine striae and pores, intercoxal area striate and with a longitudinal row of pores; venter with cupule ih. Length of ventral setae: 1a 26 (24 – 27), 3a 21 (20 – 23), 4a 17 (18 – 20), 4c 17 (13 – 18), ag1 15 (13 – 15), ag2 14 (13 – 15), g1 13 (14 – 16), g 2 18 (16 – 20); ps1 15 (13 – 16), ps2 13 (12 – 16), ps3 15 (12 – 14).

Gnathosoma ( Fig. 1B ) — Hypostome narrow ( Fig.1B ), with one pair of long setae m 28 (30 – 34) and two pairs of adoral setae, or1 8 (7 – 10), or2 12 (10 – 14) ( Fig. 1B ); chelicerae: 105 (106 – 113); stylophore: 20 (18 – 30) ( Fig. 2A ); palp ( Fig. 2B ) 91 (85 – 98) long, palptarsus with four eupathidia, four simple setae and one solenidion; palptibia with three simple setae; palpgenu with two and palpfemur with three simple setae. Palp trochanter without seta.

Legs ( Figures 3 A-D) — Setal formulae of leg segments (solenidia in parentheses and not included): coxae 2-1-2-1; trochanters 1-1-2-1; femora 4-3-2- 2; genua 5(+ κ)-4(+ κ)-2-3; tibiae 5(+ φ + φp)-5(+ φp)- 4(+ φp)-3; tarsi 15(+ω1+ω2)-12(+ω1+ ω2)-9(+ω)- 9(+ω).

Male and immature stages — Unknown.

Etymology — This species is named F. hyrcanensis n. sp., because Hyrcana is the ancient name of our city, Gorgan, where we found this species.

Type material — Holotype and three paratype of Favognathus hyrcanensis n.sp. were collected from soil on 25th May, 2010, Gorgan city, Golestan province, Iran, by Sheila Shirinbeik Mohajer. The holotype and one paratype will be deposited to Jalal Afshar Zoological Museum , Department of Plant Protection , Faculty of Agriculture , University of Tehran, Karaj , Iran and two paratypes were deposited to the Acarological Collection , Department of Plant Protection , Faculty of Plant Protection, University of Gorgan, Iran.

Remarks — This new species is closely related to F. bafranus Doǧan 2008 ; F. luxtoni Koç and Ayyildiz, 1999 ; F. observabilis Kuznetsov, 1974 and F. pictus Summers and Chaudhri, 1965 in having same dorsal and ventral shields patterns and in the presence of rosettes; however, it can be distinguished by the combination of characters provided in Table 1.

Figures

FIGURE 1: Favognathus hyrcanensis n. sp. (Female): A – Dorsal view of idiosoma; B – Ventral view of idiosoma.

FIGURE 2: Favognathus hyrcanensis n. sp. (Female): a – Chelicerae; b – Palpus.

FIGURE 3: Favognathus hyrcanensis n. sp. (Female) - Legs.