Study on predatory mites of Aceria tristriatus (Nalepa, 1890) from Hamedan and Lorestan provinces, Western Iran Ahmad-Hosseini, Mohammad Khanjani, Mohammad Karamian, Roya Persian Journal of Acarology 2019 2019-04-15 8 2 125 145 Schruft, 1972 Schruft, & Ueckermann 1972 [610,978,987,1010] Arachnida Tydeidae Tydeus Animalia Prostigmata 12 137 Arthropoda species goetzi   Diagnosis (female) Dorsal setae different in shape, three pairs of caudal setae ( h1, h2and ps1) spatulate, propodosomal trichobotria approximately thick and not much longer than the other dorsal setae. Palpal tarsus length (20) subequal to cheliceral stilettos (19), solenidion ωIshorter than half of tarsus I width, setae of genua III-IV and dorsal seta on tibiae III are stout and blunt distally.  Female ( Figs. 23–28) Body oval shape 355–467 length (excluding gnathosoma), width 214–222 (at level of seta c2).  Dorsum –Completely striated ( Fig. 23), dorsal setae spindle and serrated, length of dorsal setae: bo34–36, ro29–31, la24–26, ex31–33, c125–27, c232–35, d126–28,  e130–33, f132–34, f236–43, h131–33, h230–32, ps120–21. Distances between dorsal setae: ro -ro28–31, la -la85– 94, bo -bo60–65, c1-c164–69, c2-c2170–181, d1-d143–48, e1-e1103–111, f1-f130–35, f2-f279– 86, h1-h126–30, h2-h256–63, ps1-ps125–29.   Venter –Ventral cuticle and coxisternal shields striated ( Fig. 26), lengths of ventral setae: 1b27–28, 1c24–26, 2a19–21, 3b29–32, 3c25–27, 3d26–27, 4b24–25, pt29–31, mtα19–20, mtβ17–18, ag114, ag216–17, ag316–17, ag417, ps324–26.  Gnathosoma –Visible completely from above. Palpal femur-genu: length 23, width 12. Palp distally with eupathidium ( pζ) straight, 8 long. Palp chaetotaxy (6+ ω–1–2) ( Fig. 4).  Legs –Measurements from trochanter to tarsus (excluding pretarsus): leg I 197–205; leg II 170–176; leg III 183–187; leg IV 207–214; cg(coxal organ) narrowed, oval shape. Measurements: tarsus + apotele I length/width: 65/14. Length of setae on tarsus I: ft’ζ18–20, ft”ζ31–33, tc’ζ19– 20, tc”ζ28–31, ωI6 ( Fig. 25). Tarsus II with club-like solenidion ωII2 long. Setae of genua III-IV and dorsal seta on tibiae III stout and blunt distally ( Figs. 27, 28).  Remarks It is the first record of this species in Hamedanand Lorestanprovinces. Re-description of  T. goetziin this study resembles previous studies by Baker (1970)and Darbemamieh et al.(2016). Unlike previous studies, more detail and measurements of body setae are presented in this study. Setae of genua III-IV and dorsal seta on tibiae III are blunt in this re-description, but according to former study dorsal setae of genua III and tibiae III-IV are blunt.   Figures 23–25.  Tydeus goetzi( Schruft, 1972)(Adult female )– 23. Dorsal view of idiosoma; 24. Palp; 25. Leg I.  Material examined   Hamedan province: Avarzaman village–  26 Sep. 2015(n = 2), Lorestan province: Kahman canyon – 13 Oct. 2015(n = 1); Firouz Abad county – 13 Nov. 2015(n = 1). [208,1053,1719,1742] 2015-09-26 Avarzaman village 13 138 1 Hamadan