author(s)
KG Trencheva and GS Trenchev

abstract
Three new species of Tenuipalpidae (Acari:Prostigmata) for the fauna of Bulgaria are reported. The material was collected between April and November, 2010 in Sofia and Karlovo on Taxus baccata L., Thuja occidentalis L. and Juniperus sabina L. Representatives from three families have been identified as a result, the most numerous of which are the Tenuipalpidae (three species), Cheyletidae (one species) and Stigmaeidae (one species). Pentamerismus taxi (Haller, 1877) associated with Taxus baccata L., Pentamerismus oregonensis(McGregor, 1949) collected from Thuja occidentalis L. and Juniperus sabina L. and Cenopalpus lineola (Canestrini & Fanzago, 1876) are reported as new for the mite fauna of Bulgaria. During asurvey twopredatory miteswereidentified - Cheletogenesornatus(CanestriniandFanzago, 1876) (Cheyletidae) andZetzelliasilvicola(Gonzalez-Rodriguez, 1965) (Stigmaeidae). The aim of this study was to determine what species of mites are present on ornamentals such as Taxus baccata L., Thuja occidentalis L. and Juniperus sabina L. and to increase the current knowledge of their distribution and seasonal occurrence in Bulgaria.