Abstract
Taxonomic studies undertaken on tetranychoid mites associated with vegetable and fruit crops growing in Delhi and surrounding areas revealed the occurrence of 40 species belonging to the families Tetranychidae and Tenuipa-ipidae. Out of these 11 species, viz. Eutetranychus maximae, E.phaseoii,E. btiobatus, E. caricae, E. nagai, Eotetranycluis rohllae, E. irrtgularensis, E, raJouriensIs, Tetranychus afrindicus, T. zaheri and T. Papayae belonging to the family Tetranychidae and 2 species, viz. Terminalichus serratiis and Temdpalpus yousefi belonging to the family Tenuipalpidae are new to science. Six species belonging to 4 genera, namely Eutetranychus, Schizotetranycluisf Oligonychus and Tetranyehus, known from elsewhere are recorded for the first time from this country. The new species are fully described with adequate illustrations and affinities with related species. Keys to distinguish the genera and species (including already known species from India) associated with vegetable and fruit crops are also given, followed by a brief discussion on the systematic position of some of the genera and subgenera.
