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The predatory behaviour of Chrysilla lauta and Sliersemiglaucus from Sri Lanka, and four species of Natta from Kenya, was studied in the laboratory for the first time. These salticids eat ants, a prey most salticids avoid. These species' specialized behaviour for catching ants is described and compared to their behaviour for catching other insects. Three different types of tests of prey preference were carried out and, in each type, ants were taken in preference to other insects. Preference for ants, and prey-specific predatory behaviour did not depend on prior experience with ants. Results from this study are discussed in relation to recent findings on other ant-eating salticids.