Tenuipalpidae and Tetranychidae (Trombidiformes, Tetranychoidea) from Syria with a description of a new species of Bryobia Author Barbar, Ziad Department of Plant Protection, Faculty of Agriculture, Al-Baath University, P. O. Box 77, Al- Sham St., Homs, Syria. Author Parker, Bruce Entomology Research Laboratory, University of Vermont, 661 Spear Street, Burlington, Vermont, 05405 - 0105, USA. Author Auger, Philippe CBGP, INRAE, CIRAD, IRD, Montpellier SupAgro, Univ Montpellier, Montpellier, France. & Department of Plant Protection, Faculty of Agriculture, Al-Baath University, P. O. Box 77, Al- Sham St., Homs, Syria. text Acarologia 2022 2022-01-14 62 1 58 67 https://www1.montpellier.inrae.fr/CBGP/acarologia/article.php?id=4491 journal article 10.24349/6gnq-wcbz 2107-7207 7160040 Bryobia ( Lyobia ) hadizeni sp. nov. Zoobank: D3FFBD1F-B949-4193-AFC5-6C04222CCB0A Figures 1–5 Type material — Holotype (female) and three female paratypes from Calicotome villosa (Poir.) Link. (Leguminosae), Alhafah ( 35°60′21″ N , 36°11′50″ E ), Latakia governorate , Syria , 20 April 2021 , coll. Z. Barbar. Material has been deposited in the Arthropod Collection of the Department of Plant Protection, Faculty of Agriculture, Albaath University, Homs , Syria . Diagnosis — This species belongs to the berlesei -group due to prodosomal lobes well developed, no duplex setae on tarsus IV and femoral interior dorsal row with four long setae ( Eyndhoven and Vacante, 1985 ). Prodorsum with two large oval-shaped lateral depressions. Opisthosoma bearing 6 large oval-shaped depressions with elongate ribbon-shaped pattern and one triangularly rounded depression caudally. Dorsal body setae serrate spatulate, except f 2 and h 1 elongate, acute distally, f 2 and h 1 longest. Dorsocentral setae of each row with members close to each other. Femora and genua II-IV with some flattened setae. Female description — 625 (605–616 µm) long including lobes (base of setae v 1 ) and 391 (381–383) wide, gnathosoma 95 (75–110) long. Distances between sc 2 – sc 2 325 (294–320) and between v 2 – h 1 614 (598–600). Dorsum – Prodorsum with four pairs of setae, with rounded, oval and elongate reticulation medially surrounded by granulation, with two large oval-shaped lateral depressions containing irregular folds forming oval patterns ( Figures 1 and 2A ); well-developed anterior prodorsal lobes, inner lobes conical measuring 53 (50–52) high (excluding setae), separated by wide V-shaped incision 31 (15–21) in depth (measured from the bottom of the incision between the of prodorsum; B and C – setae c 1 ; D and E – setae e 1 and h 1 , respectively. Scale bar = 50 μm. Figure 1 Bryobia hadizeni n. sp , female, dorsal aspect. Scale bar = 100 μm. Figure 2 Bryobia hadizeni n. sp , female: A – propodosomal lobes and detail of granulated integument inner lobes to their tip, excluding setae) ( Figure 2A ); outer propodosomal lobes subtriangular to conical 35 (32–33) high (excluding setae); tip of setae v 2 slightly surpasses setae v 1 insertions; setae v 1 shorter than setae v 2 . Distance between members of first ( v 1 ) and second ( v 2 ) pair of propodosomal setae insertions 28 (28) and 103 (98), respectively. Opisthosoma with six large oval-shaped depressions containing elongate ribbon-shaped reticulations (3 pairs posterolateral to setae c 1 , d 1 and e 1 and one triangularly rounded caudally; Figure 1 ) and with large mostly transverse folds medially. Dorsal body setae serrate spatulate, except e 3 and f 1 subspatulate, f 2 and h 1 elongate, narrower, acute distally; setae v 1 the shortest, f 2 and h 1 the longest. Among dorsocentral setae, c 1 larger and less spatulate than setae d 1 and e 1 ( Figure 1 and 2B, D and E ) except in one specimen ( Figure 2C ). All dorsal setae inserted on obvious tubercles (those of f 1 , f 2 and h 1 the biggest). Measurements of dorsal setae: v 1 27 (25–26); v 2 38 (32–34); sc 1 50 (44–50); sc 2 42 (40–46); c 1 42 (35–40); c 2 40 (34–44); c 3 36 (34); d 1 34 (27–33); d 2 46 (37–42); d 3 39 (37–41); e 1 33 (25–39); e 2 44 (44–45); e 3 45 (45–52); f 1 48 (51); f 2 60 (67–69); h 1 71 (64–72); dorsal setae width v 1 9 (8–10); v 2 14 (13–14); sc 1 11 (15–18); sc 2 11 (15–16), c 1 15 (21–23), c 2 15 (14–18), c 3 14 (17–20), d 1 13 (17–19), d 2 13 (14–19), d 3 14 (16), e 1 15 (15–17), e 2 12 (17–18), e 3 13 (11–16), f 1 12 (10–16), f 2 10 (7–12) and h 1 9 (8–11). Distances between setae: c 1 – c 1 40 (40–45), d 1 – d 1 40 (33–42), e 1 – e 1 22 (22–30), f 1 – f 1 155 (135–140), f 2 – f 2 76 (75), h 1 – h 1 15 (18–20), c 1 – d 1 105 (98–104), d 1 – e 1 90 (85–92). Gnathosoma – Stylophore slightly notched anteriorly, 92 (90–101) long and 73 (74–78) wide. Tibial claw of palpus bidentate ( Figure 3A ). Palptarsus slightly longer (excluding setae) 18 (19–18) than tibial claw 15 (15–16), with three tactile setae, three eupathidia and one solenidion, the shortest ( Figure 3A ). Tip of tibial claw reaches insertion of proximal tarsal tactile seta “a”. Peritreme anastomosed distally, elongate, 33 (27–32) long 7 (9–8) wide ( Figure 3B ). Venter – Area immediately anterior to genital flap irregularly longitudinal. Three pairs of pseudanal setae ( ps 1-3 ) and two pairs of ventrocaudal setae ( h 2-3 ) present. Sacculus of C Figure 3 Bryobia hadizeni n. sp , female: A – palpal tibia and tarsus; B – peritreme; C – spermatheca. Scale bars = 20 μm (A and C), 30 μm B. Figure 4 Bryobia hadizeni n. sp , female legs (from femur to tarsus): A, B, C, and D – legs I, II; III and IV, respectively. Scale bar = 100 μm. Figure 5 Bryobia hadizeni n. sp , female: A – claw and empodium I; B – claw and empodium II; C – duplex setae on tarsus III; D – solenidion and associated tactile seta on tarsus IV. Scale bars = 10 μm (A and B), 20 μm C and D. spermatheca elongate 23 (20) long 8 (10) wide ( Figure 3C ). Legs – ( Figures 4 and 5 ). Internal dorsal row of femur I with 4 long serrate setae 53 (50–55) and one normal seta 28 (27–30). Leg I 536 (528–541) long, leg II 340 (322–333), leg III 333 (315–322), leg IV 400 (396–430). Length of segments of leg I as follows: trochanter 45 (42–50), femur 156 (142–160), genu 75 (67–75), tibia 108 (104–112), tarsus 86 (83–86). Femora and genua II-IV with some flattened setae. Leg setal counts as follows ( Figure 4 ): I: 2 – 1 – 12[13] – 6 – 13 + (1) – 18 + (4) + 2 duplexes II: 1 – 1 – 10[9] – 5 – 9 – 16 + (1) + 1 duplex III: 1 − 1 − 7 – 6 – 9 –13 + 1 duplex IV: 1 – 1 – 6 – 5[6] – 9 − 14 + (1) True claws uncinate. Claw and empodium I with one and three pairs of tenent hairs, respectively ( Figure 5A ). Claws II-IV each with three pairs of tenent hairs and empodia II-IV consist of two rows of tenent hairs ( Figure 5B ). Tarsus III associated tactile seta 21 (20–20) and solenidion 15 (15–20) forming duplex ( Figure 5C ); on tarsus IV solenidion 7 (8–10) shorter and proximal, well-separated (7) from tactile seta 22 (20–20) ( Figure 5D ). Coxisternal setae 1b and 1c smooth: 1b , 54 (53–60), longer than setae 1c 33 (33–40). Etymology — The name of the new species “ hadizeni ” is composed of the first names of Hadi and Zen, sons of the first author, to whom the new species is dedicated. Remarks — Bryobia ( L. ) hadizeni sp. nov. is very close to B . ( L. ) cooremani Eyndhoven and Vacante (1985) , but this new species differs from it by (1) having obvious large dimples on idiosoma vs. absent in B . ( L. ) cooremani (2) having setae f 2 elongate, subspatulate and longer (60–69), and h 1 elongate, narrow, acute distally and longer (64–72) vs . elongate spatulate: f 2 30–50, h 1 30–47 in B . ( L. ) cooremani ; (3) having longer seta c 1 35–42 vs . 22–33 in B . ( L. ) cooremani ; (4) having distances between c 1 – c 1 40–45, d 1 – d 1 33–42, e 1 – e 1 22–30 shorter vs . c 1 – c 1 72–90, d 1 – d 1 55–70, e 1 – e 1 33–50 in B . ( L. ) cooremani ; (5) having longer setae in the internal femoral upper row of leg I: 50–55 long vs . about 40 in B . ( L. ) cooremani ; (6) having some flattened setae on femora and genua II-IV vs . all legs with normal setae in B . ( L. ) cooremani . Bryobia ( L. ) hadizeni sp. nov. is easily separated from B. ( L. ) pelerentsi Eyndhoven and Vacante (1985) previously recorded from C. villosa by: (1) the lack of obvious large dimples on idiosoma in B. ( L. ) pelerentsi which also have a narrower body (300–320 µm); (2) differences in the shape of several dorsal setae: c 1 shell-like vs . spatulate elongate, f 1 and f 2 spatulate wide vs . elongate subspatulate and h 1 elongate spatulate vs . elongate narrow and acute distally in B. ( L. ) pelerentsi and B. ( L. ) hadizeni sp. nov. , respectively; (3) a different ratio between palptarsus and thumbclaw about 1.5 in B. ( L. ) pelerentsi vs . subequal in length in B. ( L. ) hadizeni sp. nov. ; (4) having three pairs of tenent hairs on empodium I vs . two pairs in B. ( L. ) pelerentsi .