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Abstract
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The Eriophyoidea (Acari: Trombidiformes) are a morphologically distinct group of mites. They are minute with
elongated, worm-like and annulated bodies, and are unique in having all instars of both sexes with two pairs of similarly
developed legs anteriorly. Also these mites don’t have the tracheal system and stigmata, and their exchange of respiratory
gases is necessarily done through the skin. Economically, eriophyoid mites are rendering as the second most important
mite species after tetranychid mites. The importance of eriophyoid mites are because of the direct damage to their hosts,
their ability to transmit plant pathogens especially plant viruses, and also their potential to use as biological agents for
weeds control. Despite their small body and low mobility, they can disperse passively through air currents, rain and
especially, human practices, which increases their importance. During the study of plant samples collected in Sari county,
Mazandaran province, Iran, in summer 2017, eriophyoid mites were recovered by a modified washing method. The mites
were slide mounted and all morphological measurements were taken. From identified species, five species belonging to
the family Eriophyidae, and one species belonging to the family Diptilomiopidae are introduced here which all of them
are new records to mite fauna of Iran. The identified species are as follows: Tegonotus trouessarti Nalepa, 1892 from
Alnus subcordata C. A. Mey. (Caucasian Alder) (Betulaceae), Aculus lydii Denizhan & Bromberek, 2016 from Hypericum
perforatum L. (St. John's Wort) (Hypericaceae), Shevtchenkella pseudoobtusa (Petanovic, 1987) from Acer velutinum
Boiss. (Persian Maple) (Sapindaceae), Phyllocoptes pteridii Petanovic, 2001 from Pteridium aquilinum (L.) Kuhn
(Western Bracken) (Dennstaedtiaceae) and Acalitus essigi (Hassan, 1928) from Rubus idaeus L. (Raspberry) (Rosaceae)
belong to Eriophyidae, and Apodiptacus cordiformis Keifer, 1960 from Ficus carica L. (Common Fig) (Moraceae) belong
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