The present invention relates to novel heteroaryl-triazole compounds of the general formula (I), in which the structural elements X, Y, R.sup.1, R.sup.2, R.sup.3a, R.sup.3b, R.sup.4 and R.sup.5 have the meaning given in the description, to formulations and compositions comprising such compounds and for their use in the control of animal pests including arthropods and insects in plant protection and to their use for control of ectoparasites on animals.

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