Study on predatory mites of Aceria tristriatus (Nalepa, 1890) from Hamedan and Lorestan provinces, Western Iran Author Ahmad-Hosseini, Mohammad . Department of Plant Protection, College of Agriculture, Bu-Ali Sina University, Hamedan, Iran; E-mails: mahmad hoseini @ yahoo. com; mkhanjani @ gmail. com Author Khanjani, Mohammad . Department of Plant Protection, College of Agriculture, Bu-Ali Sina University, Hamedan, Iran; E-mails: mahmad hoseini @ yahoo. com; mkhanjani @ gmail. com Author Karamian, Roya . Department of Biology, Faculty of Science, Bu-Ali Sina University, Hamedan, Iran; E-mail: R _ karamian @ basu. ac. ir basu.ac.ir text Persian Journal of Acarology 2019 2019-04-15 8 2 125 145 journal article 10.22073/pja.v8i2.45640 2251-8169 4644893 4C425003-76FC-45EE-918E-FA17FEA2FC10 Kuzinellus kuzini Wainstein, 1962 Diagnosis (female) Dorsal shield with 5 pairs of solenostomes ( gd2 , gd4 , gd6 , gd8 , gd9 ); dorsal shield setae inserted on small tubercles seta z6 presence in female, JV2 and JV3 present, with four pairs of preanal setae and one pair of pre-anal pores, seta R1 on membrane; setae J5 smooth and Z4 serrate, calyx of spermatheca tubular shape, flaring distally near the vesicle; leg IV with a macroseta on basitarsus which is sharp-tipped in adult, movable and fixed digits of chelicera with 2 and 4 teeth, respectively. In this study, this species had the highest association among other predatory mites found together with Aceria tristriatus in Hamedan and Lorestan provinces. Immature stages (larva, protonymph and deutonymph) and adults (female and male) of K. kuzini are described and redescribed, respectively, by Ahmad-Hosseini et al. (2017b) . Material examined In order to avoid repeating, geographical coordinates of sampling locations that previously presented not mentioned again. Hamedan province : Heydareh village 7 Oct. 2014 (n = 15), 8 Oct. 2015 (n = 18), 23 Aug. 2016 (n = 11), 9 Oct. 2016 (n = 6), 29 Oct. 2016 (n = 4), 9 Sep. 2017 (n = 6), 13 Sep. 2017 (n = 7); Shahrestaneh village 18 Sep. 2014 (n = 20), 23 Nov. 2015 (n = 7), 17 Oct. 2016 (n = 5), 14 Sep. 2016 (n = 14); Ganjnameh 26 Aug. 2017 (n = 9), 1 Sep. 2017 (n = 8); Asadabad ( 34° 37’ N ; 47° 51’ E ) 2 Aug. 2016 (n = 11), 30 Oct. 2015 (n = 10), 27 Aug. 2016 (n = 4), 9 Nov. 2016 (n = 5); Hamedan vicinity ( 34° 46’ N ; 48° 31’ E ) 15 Aug. 2015 (n = 5), 5 Jul. 2017 (n = 15); Faculty of Agriculture of Bu-Ali Sina University ( 34° 48’ N , 48° 29’ E ) 16 Oct. 2015 (n = 3), 19 Sep. 2016 (n = 18), 30 Sep. 2016 (n = 14); Divin village ( 34° 45’ N ; 48° 30’ E ) 4 Aug. 2016 (n = 5), 8 Sep. 2016 (n = 3); Sarab Gamasiab ( 34° 02’ N ; 48° 22’ E ) 10 Aug. 2016 (n = 6); Bahar vicinity ( 34° 55’ N ; 48° 19’ E ) 29 Oct. 2016 (n = 9), 2 Aug. 2017 (n = 6); Maryanaj vicinity ( 34° 54’ N ; 48° 29’ E ) 18 Nov. 2016 (n = 6); Abasabad village ( 34° 47’ N ; 48° 28’ E ) 20 Jul. 2015 (n = 6); Darreh Morad Beyg village ( 34° 44’ N ; 48° 30’ E ) 23 Jul. 2017 (n = 4). Lorestan Province : Kahman canyon 30 Aug. 2015 (n = 8), 26 Sep. 2015 (n = 5), 13 Oct. 2015 (n = 13); Aleshtar county 4 Sep. 2015 (n = 15); Firouz Abad county ( 34° 58’ N , 48° 24’ E ) 13 Nov. 2015 (n = 7), 10 Aug. 2016 (n = 8); Robatnamaki village ( 33° 47’ N , 48° 18’ E ) – 10 Augs. 2016 (n = 5) .