The present invention relates to Indanyl- and Tetrahydronaphthyl-amino-azoline compounds of formula I wherein the variables R1 and R2 are as defined in description. The invention relates also to methods of combating or controlling insects, arachnids or nematodes, to methods for protecting growing plants from attack or infestation by insects, arachnids or nematodes, to methods for the protection of seeds from soil insects and of the seedlings' roots and shoots from soil and foliar insects and to methods for treating, controlling, preventing or protecting animals against infestation or infection by parasites.
