Linotetranus eghbaliani, Khanjani & Mohammadi & Izadi & Khanjani, 2012

Khanjani, M., Mohammadi, E., Izadi, H. & Khanjani, M., 2012, A New Species Of Linotetranus (Acariformes: Tetranychoidea: Linotetranidae) From The Southeast Of Iran, Acarologia 52 (4), pp. 419-424 : 420-423

Linotetranus eghbaliani n. sp.

( Figs. 1-2 )

Diagnosis — Setae v 1 bifurcate, palptarsus with one eupathidium and four simple setae, palptibia with two setae, palpgenu without setae; seate e4 present, genital shields with three pairs of setae (g 1-3).

Material examined — Two females, holotype female collected from soil beneath apricot trees, Prunus armeniaca (L.) ( Rosaceae ) and one paratype female collected from soil under almond trees, Amygdalus communis (L.) ( Rosaceae ), Rafsanjan (29º 58’ N, 55º 53’ E and altitude 2600 m a.s.l), Kerman Province, Iran, 19, April 2010, Elham Mohammadi. The holotype female is deposited as slide-mounted specimens in the Collection of Acarology Laboratory, University of Bu-Ali Sina, Hamadan, Iran; one paratype female will be deposited in the mite collection of ARC-Plant Protection Research Institute, Pretoria, South Africa.

Description

Female (n = 2) — Idiosoma elongate. Dimensions: Length of body (including gnathosoma) 432 (405) (excluding gnathosoma 351 (322); width 142 (145); length of leg I 147 (141); leg II 103 (102); leg III 93 (92); leg IV 93 (97).

Dorsum ( Figure 1A ) — Dorsal idiosoma reticulate and with 22 pairs of setae; all dorsal setae serrate; v 1 pinnate and bifurcate distally ( Fig. 1B ). Eyes absent. Caudal area anteriorely reticulate. Setae f 3 and h 2 is the longest seta on the dorsum. lengths of dorsal setae as follows (measurements of paratype in parentheses): v 1 17 (19), v 2 39 (38), sc 1 72 (79), sc 2 75 (79); hysterosoma with 18 pairs of setae: c 1 22 (23), c 2 48 (50), c 3 79 (86), c 4 89 (94), d 1 25 (24), d 2 57 (50), d 3 89 (87), e 1 13 (12), e 2 55 (60), e 3 71 (72), e 4 51 (47), f 1 17 (16), f 2 34 (32), f 3 124 (118), h 1 45 (41), h 2 132 (142), h 3 64 (63), h 4 43 (41);. Distances between setae: v 1 -v 1 4 (5), v 1 -v 2 28 (29), v 2 -v 2 39 (39), v 2 -sc 1 36 (37), sc 1 -sc 1 85 (85), sc 1 -sc 2 24 (24), sc 2 -sc 2 120 (115), c 1 -c 1 61 (60), c 2 - c 2 95 (99), c 1 -c 2 18 (21), c 2 - c 3 16 (16), c 3 -c 3 124 (130), c 3 -c 4 31 (35), c 4 -c 4 110 (105), d 3 -d 3 94 (88), c 1 -d 1 95 (89), d 1 -d 1 15 (16), d 1 -d 2 31 (29), d 2 -d 2 73 (78), d 2 -d 3 12 (10), d 3 -d 3 94 (88), d 3 - e 3 54 (50), e 1 -d 1 52 (51), e 1 - e 1 20 (20), e 1 - e 2 26 (26), e 2 -e 2 66 (69), e 2 - e 3 12 (10), e 3 -e 3 85 (84), e 3 - e 4 12 (13), e 4 -e 4 87 (89), e 1 -f 1 39 (37), f 1 -f 1 31 (34), f 1 -f 2 14 (13), f 2 -f 2 54 (55), f 2 -f 3 5 (6), f 3 -f 3 65 (69), f 1 -h 1 28 (30), h 1 -h 1 15 (13), h 1 -h 2 5 (6), h 2 -h 2 24 (24), h 2 -h 3 4 (4), h 3 -h 3 29 (37), h 4 -h 4 44 (43).

Venter ( Figure 1C ) — Ventral sculpturing reticulate-areolate. Area between setae 2a and 3a with transverse striae. Intercoxal area with four pairs of setae (1a, 2a, 3a, 4a); setae 1a two times longer than 3a and 4a; 2a serrate; two pairs aggential setae (ag 1-2); ag 1 on posterior part of aggenital shield, ag 2 situated on integument. Genital shields with three pairs of setae (g 1-3), g 2 longer than others; Pseudanal shields with three pairs of setae (ps 1-3). Measurements of setae: 1a 86 (85), 1b 23(24), 1c 13 (14), 2a 63 (68), 2b 29 (28), 3a 45 (40), 3b 22 (21), 4a 43 (42), 4b 22 (21), ag 1 37 (32), ag 216 (20), g 1 8 (7), g 2 14 (21), g 3 7 (9), ps 1 11 (12),, ps 2 12 (14), ps 3 17 (15). Distances between setae: 1a -1a 24 (24), 1a -2a 34 (35), 2a -2a 71 (74), 2a -3a 78 (61), 3a -3a 56 (55), 3a -4a 115 (116), 4a -4a 28 (25), ag 1 -ag 1 30 (29), ag 2 -ag 2 68 (64), g 1 -g 1 13 (14), g 1 -g 2 10 (9), g 3 -g 3 20 (21), g 2 -g 3 9 (9), g 2 -g 2 12 (15), ps 1 -ps 1 21 (21), ps 2 -ps 2 18 (19), ps 3 -ps 3 15 (13), ps 1 -ps 2 6 (7), ps 3 -ps 2 8 (8).

Gnathosoma ( Figures 1 D-F) — Palp five segmented; palp coxa longer than other segments. Palptarsus with four simple setae, one solenidion 3 (5) and one eupathidium 5 (5); tibia 8 (10) with two setae and a dorsal claw; genua 10 (12) without setae; femora 12 (13) with one dorsal seta ( Fig. 1F ). Preoral setae or 1 3 (3), or 2 8 (10); hypostomal setae m 14 (18) ( Fig. 1D ). Length of chelicerae from the base to their tips 114 (121), stylophore as in figure 1E.

Legs ( Figures 2 A-D) — Setal formulae for legs I- IV: coxae 2-1-1-1; trochanters 1-1-1-0; femora 5-3-2- 1; genua 5-2-1-0; tibiae 5[1’ 3 (3)]-4-3-4; tarsi 11(2 ω)- 7(1 ω)-4-4; solenidia on tarsus I-II and tibia I spindle shape I ω1 5(6), I ω2 7(9), II ω 7(8).

Remarks — Linoterranus eghbaliani sp. nov. resembles L. anatolicus Do ˘gan and Dönel, 2010 in having the same dorsal and ventral pattern and palpgenu without seta. However it differs from the latter by: setae v 1 bifurcate instead of simple in L. anatolicus , setae h 2 longest dorsal setae in the former but f 3 longest in the latter; palptarsus with one eupathidium versus four eupathidia in L. anatolicus and setae e 2 55 (56) oppose to e 2 33 (27-35).

Also the new species closely resembles Linotetranus astragalusi Khanjani et al., 2011 from Iran, in having the same leg setal formula, dorsal pattern and palpgenu without setae; however it differs from L. astragalusi by: area between 1a-2a with transverse striae (rectangular reticulations in L. astragalusi ); caudal area anteriorly reticulate (smooth in L. astragalusi ), setae v 1 bifurcate (simple in L. astragalusi ) and there are some dorsal setal length differences: d 2 57 (50) vs. 28 (27) in L. astragalusi ; e 2 29 (27) vs. 55 (56) in L. astragalusi , e 4 51 (47) vs. 28 (29) in L. astragalusi .

Male and immature stages — Unknown

Etymology — This species is named in honor of Dr. Amir Hosein Eghbalian, close friend of senior author at the department of Plant Protection, College of Agriculture, Bu-Ali Sina University, Hamedan, Iran.

Figures

FIGURE 1: Linotetranus eghbaliani n. sp. (female): A – Dorsal view; B – prodorsal seta v1; C – Ventral view; D – Ventral infracapitulum; E – Chelicera; F – Palp.

FIGURE 2: Linotetranus eghbaliani n. sp. (female): A – leg I; B – leg II; C – leg III; D – leg IV.