During years 2000-2001,a faunal study was conducted in sugarbeet fields of Miandoab plain in which 16 families, 35 genera and 47 speceis belonging to the order Prostigmata were collected from sugarbeet folaige as well as soil. Only one was phytophagus while all the remaining were predators, fungivores and/or saprophagous. The new records for the mite fauna are indicated by one and two asterisk(s) for Iran and the world, respectively.
Caligonellidae: Molothrognathus terrulentus Meyer & Ueckermann; Neognathus terrestris (Summers & Schlinger). Cheyletidae: Hypopicheyla* elongata* Volgin. Cunaxidae: Coleoscirus* buartus* Den Heyer; Cunaxa capreolus (Berlese); C. womersleyi Baker & Hoffmann; Pseudobonzia* saaymani* Den Heyer; Pulaeus chongqingensis* Bu & Li; P. longignathos* Bu & Li; P. near martini Den Heyer; P. near zaheri* El-Bishalwy & Rakha. Erythraeidae: Abrolophus sp.,; Erythraeus sp.,; Abrolophus iraninejadi** Saboori & Hajiqanbar; Erythraeus (Zaracarus) near budapestensis* Fain & Ripka. Eupodidae: Benoinyssus* sp.; Claveupodes* sp,; Eupodes sp., Paratydeidae*: Tanytydeus* neocristatus* Kandeel & Hoda. Pseudocheylidae; Anoplocheylus sp., Pygmephoridae: Bakerania delanyi* (Evans); B. quadratus (Ewing); B. tarsalis* (Hirst); Pediculaster pseudomanicatus Camerik. Raphignathidae: Raphignathus gracilis (Rack). Rhagidiidae: Rhagidia* sp.; Shibaia heteropoda (Berlese). Scutacaridae: Imparipes (Imparipes) near dilatatus* Mahunka & Zaki; I.(I.) near ethiopicus* Mahunka; Pygmodispus* (Allodispus) latisternus* Paoli; P. (P.) calcaratus* Paoli; Scutacarus quadrangularis Paoli; S. serotinus* Sevastianov & Chydyrov. Smarididae: Smaris sp., Stigmaeidae: Cheylostigmaeus near multidentatus* Summers & Ehara; Eryngiopus near lindei* Meyer; Stigmaeus luteus* Summers. Tetranychidae: Tetranychus urticae Koch. Trombidiidae: Allothrombium sp., Dolichothrombium sp., Iranitrombium** miandoabicum** Saboori & Hajiqanbar ; Monotrombium simplicium Zhang. Tydeidae: Coccotydeolus* krantzi* Baker; Metapronematus sp.; Tydeus kochi Oudemans; T. maga* (Kuznetzov).