Eutetranychus neotranversus, Kamran, Muhammad, Khan, Eid Muhammad & Alatawi, Fahad Jaber, 2018

Kamran, Muhammad, Khan, Eid Muhammad & Alatawi, Fahad Jaber, 2018, The spider mites of the genus Eutetranychus Banks (Acari, Trombidiformes, Tetranychidae) from Saudi Arabia: two new species, a re-description, and a key to the world species, ZooKeys 799, pp. 47-88 : 47

Eutetranychus neotranversus sp. n. Figures 16, 17, 18, 19−22, 23, 24, 25, 26, 27-30

Diagnosis (Female).

Dorsal body setae slender and serrate, all set on small tubercles; hysterosoma medially with transverse striae; propodosoma with lobed striae, hysterosomal striae simple (without lobes); stylophore slightly notched anteriorly; leg I shorter than body length; femora, genua, tibiae and tarsi I−IV: 5−4−2−1; 4−4−1−2; 6 (1)−5−4−4; 12(3ζ, 2ω)−11(3ζ, 1ω)−10(1ω)−10(1ω), respectively.

Description.

Female (n = 8) (Figures 16-22). Body oval; length of body (excluding gnathosoma) 347 (340−355), (including gnathosoma) 425 (415−430) and maximum width 263 (255−270).

Dorsum (Figure 16). Propodosoma medially with longitudinal striae, propodosoma with lobed striae, hysterososma medially with transverse striae, hysterosoma with simple striae; dorsal body setae slender and serrate, all dorsal setae with small tubercles, setae v2 reaching about two third to the distance v2−v2, reaching to the base of setae sc1; most hysterosomal setae distinctly shorter than distances of setae next row distance f1−f1 almost as long as d1−d1 but more widely spaced than c1−c1 and e1−e1. Length of dorsal setae: v2 34 (32−36), sc1 37 (36−38), sc2 32 (32−33), c1 24 (24−25), c2 36 (35−36), c3 23 (22−23), d1 33 (33−35), d2 38 (36−38), e1 37 (36−38), e2 42 (40−44), f1 39 (36−41), f2 26 (24−27), h1 28 (27−29); distances between dorsal setae: v2−v2 53 (51−55), sc1−sc1 95 (93−96), sc2−sc2 163 (160−165), c1−c1 58 (55−59), c2−c2 168 (160−170), c3−c3 263 (260−268), d1−d1 95(93−97), d2−d2 179 (174−185), e1−e1 63 (61−66), e2−e2 168 (163−170), f1−f1 73 (70−75), f2−f2 100 (97−102), h1−h1 26 (25−28), v2−sc1 27 (26−29), sc1−sc2 43 (42−45), sc2−c3 89 (87−90), sc2−c2 58 (57−59), sc2−c1 86 (85−87), c1−c2 53 (52−55), c2−c3 50 (50−52), d1−d2 48 (47−49), e1−e2 47 (46−48), f1−f2 21 (20−22), c1−d1 63 (60−64), c2−d2 74 (73−75), d1−e1 68 (66−69), d2−e2 74 (73−75), e1−f1 42 (41−43), e2−f2 53 (52−54), f1−h1 40 (39−41), f2−h1 37 (36−38).

Venter (Figure 17). Area between setae 1a−g1 with transverse striae. Length of ventral setae: 1a 37 (34−38), 3a 39 (39−40), 4a 40 (41−42), 1b 44 (41−44), 1c 43 (42−44), 2c 37 (35−38), 3b 36 (35−38), 4b 36 (33-37); distances between intercoxal and coxae setae: 1a−1a 53 (51−54), 3a−3a 68 (66−70), 4a−4a 95 (92−97); agential setae ag 42 (37−43), ag−ag 85 (83−86); genital setae: g1 33 (30−33), g2 32 (30−32), g1−g1 25 (24−26), g2−g2 81 (76−85); anal setae two pairs: ps1= ps2 14 (13−15), ps1−ps1 23 (21−23), ps2−ps2 23 (22−23); para−anal setae two pairs: h2 28 (27−28), h3 26 (26−28), h2−h2 31 (29−34), h3−h3 75 (72−77); all ventral setae simple except h2 and h3 slightly barbed. Spermatheca not clear.

Gnathosoma (Figure 18). Subcapitular setae m 23 (22−25), m−m 42 (39−44) (Figure 17). Palp femur and genu each with one setae, d 40 (39−44), l" 42 (40−43); palp tibia with three setae d 16 (14−17), l" 23 (21−25), l’ 23 (21−25) and a palp tibial claw; palp tarsus 16 (16−17) long, 11 (11−12) wide at base, with three setae a 7 (7−8), b 7 (6−7) both simple, c 13 (12−13) slightly barbed, three eupathidia suζ’’ 7 (6.5−7) long, 1.60 wide, ul’’ ζ 6, ul’ζ 6 and one solenidion ω 5 width 1.7 (1.5−2) (Figure 18). Stylophore anteriorly slightly notched; peritreme ending with a simple bulb (Figure 16).

Legs (Figures 19-22). Length of legs I−IV (trochanter to pretarsus): 257 (250−265), 221 (216−225), 215 (210−225), 242 (235−250) respectively; leg I: trochanter 24 (23−25), femur 105 (102−107), genu 58 (54−63), tibia 57 (54−59), tarsus 68 (66−70); leg II: trochanter 30 (29−33), femur 95 (92−98), genu 53 (50−55), tibia 48 (46−50), tarsus 63 (61−65); leg III: trochanter 32 (30−34), femur 74 (71−75), genu 40 (39−41), tibia 68 (66−70), tarsus 68 (66−70); leg IV: trochanter 32 (30−35), femur 95 (91−98), genu 42 (40−45), tibia 74 (71−76), tarsus 70 (69−73); chaetotaxy of legs I−IV (eupathidia and solenidia in parenthesis): coxae 2−1−1−1, trochanters 1−1−1−1, femora 5−4−2−1, genua 4−4−1−2, tibiae 6(1)−5−4−4, tarsi 12(3ζ, 2ω)−11(3ζ, 1ω)−10(1ω)−10(1ω).

Male (n = 2) (Figures 23-30).

Body oval; Length of body (excluding gnathosoma) 236−246, (including gnathosoma) 335−353, maximum width 154−165.

Dorsum (Figure 23). Propodosoma medially with longitudinal striae; hysterosoma medially with transverse striae; all dorsal body setae slender, serrate and sub-equal in length, setae sc2 and hysterosomal setae with small tubercles. Length of dorsal setae: v2 19−21, sc1 18−20, sc2 20−24, c1 19−22, c2 24−28, c3 21−24, d1 20−23, d2 25−27, e1 24−26, e2 20−24, f1 28−33, f2 20−23, h1 19−21, h2 9−11, h3 12−13; distance between dorsal setae: v2−v2 48−54, sc1−sc1 80−85, sc2−sc2 143−148, c1−c1 35−37, c2−c2 115−120, c3−c3 160−164, d1−d1 63−65, d2−d2 120−125, e1−e1 32−36, e2−e2 86−90, f1−f1 42−43, f2−f2 68−70, h1−h1 25−27, h2−h2 17−19, h3−h3 38−40, v2−sc1 32−33, sc1−sc2 36−38, sc2−c3 43−45, sc2−c2 32−34, sc2−c1 60−63, c1−c2 37−38, c2−c3 26−28, c1−d1 24−26, c2−d2 37−38, d1−e1 42−45, d2−e2 32−34, e1−f1 43−45, e2−f2 38−40, f1−h1 22−22, f2−h1 28−30.

Venter (Figure 24). Idiosoma ventrally with transverse striae from setae 1a−ag. Length of ventral setae; 1a 35−38, 3a 22−24, 4a 26−28, 1b 45−48, 1c 42−47, 2b 26−30, 3b 30−33, 4b 27−28; distance between setae: 1a−1a 55−58, 1b−1c 13−16, 3a−3a 44−47, 4a−4a 62−65; aggenital setae: ag 14−16, ag−ag 10−11; genital setae: g1 10−11, g2 11−12, g1−g1 16−17, g2−g2 24−26; anal setae two pairs: ps1 8−9, ps2 12−13, ps1−ps1 8−9, ps1−ps2 6−7.

Gnathosoma (Figure 25). Subcapitular setae m 24−28, m−m 30−31 (Figure 24); palp femur and genu each with one setae d 20−22, l" 26; palp tibia with three setae d 12−13, l" 17−19, l’ 8 and a palp tibial claw; palp tarsus 11 long, 8 wide, with 3 simple setae a 7−8, b 6, c 10−11, 3 eupathidia ul’’ ζ = ul’ζ 6−7, width 0.7 (0.6−0.9) suζ 4, 0.6 (0.5−0.7) a solenidion ω 3.5 long, width 1 (0.9−1.2) (Figure 25). Stylophore slightly notched; peritremes with simple bulb terminaly (Figure 23).

Aedeagus (Figure 26) bends dorsad at an angle of 90°; the bent portion blunt distally, shaft 8 long, 4 wide, bent portion 2.5 long.

Legs (Figures 27-30). Length of legs I−IV (trochanter to pretarsus): 315−325, 269−275, 265−271, 268−275 respectively; chaetotaxy of legs I−IV (eupathidia and solenidia in parenthesis): coxae 2−1−1−1, trochanters 1−1−1−1, femora 8−6−4−1, genua 5−5−2−2, tibiae 9(4)−5(3)−5−4, tarsi 11(2ζ, 2ω)−11(3ζ, 2ω)−10(1ω)−10(1ω).

Immature stages.

Unknown.

Etymology.

The species name is derived from the transverse striations on dorsal hysterosoma.

Type material.

Holotype female and four paratype females, Juniperus procera Hochst. Ex Endl. ( Cupressaceae ), Al-Shifa road, Taif, 21°04.690'N, 040°18.928'E, elevation 2244 m, 11 Oct 2016, leg. M Kamran and M Rehman; three paratype females, J. procera , Ash Shifa road, Taif, 21°06.481'N, 040°20.526'E, elevation 2133 m, 12 Sept 2017, leg. Eid M Khan and M Rehman.

Remarks.

Eutetranychus neotransversus sp. n. belongs to orientalis species group. It closely resembles E. transverstriatus Smiley & Baker, 1995 because the entire hysterosoma dorsomedially in both bear transverse striations. The new species is different from E. transverstriatus by stylophore anteriorly slightly notched vs. rounded; hysterosomal striae without lobes vs. with distinct lobed striae; number of setae on femora I−IV 5−4−2−1 vs. 7−7−4−3; genu III 1 vs. 2 and tibiae I−IV 6(1)−5−4−4 vs. 10−6−6−6 in E. transverstriatus (Table 1).