Fauna and identification key for mites of Superfamily Ascoidea (Acari: Mesostigmata) of olive orchards in Guilan province, Iran with a new species record for Iran mites fauna

During 2012-2013 a faunistic survey was conducted for collect and identify of mites in the Superfamily Ascoidea associated with Olive orchards in Guilan province. During this study seven species belonging to five genera and two families, Ascidae and Ameroseiidae were collected and identified. Among identified species Asca bicornis is a new species recorded for Iran mites fauna, the female of A. bicornis is re-described. Four species are new records for olive orchards mites fauna. Also an identification key for families Ascidae and Ameroseiidae associated with Olive orchards in Guilan Province is provided. The list of identified species are as follows. New records for Iran and Guilan Province mites fauna are marked with two and one asterisks (*), respectively. Family Ascidae: Asca bicornis** (Canestrini & Fanzago, 1887); Proctogamasellus massula Athias-Henirot, 1961; Proctogamasellus mica Athias-Henirot, 1961; Gamasellodes bicolar* Berlese, 1948. Family Ameroseiidae: Ameroseius corbiculus Sowerby, 1806; Ameroseius lidiae* Bregetova, 1977; Sertitympanum aegyptiacus* (Nasr and Abow-Awad, 1986)