SUMMARY. Comparisons between larval diets of three anisopteran species ( Anax imperator, Aeshna cyanea and Libellula depressa ) showed that their food intake changed depending on: (1) predator species, (2) time of year, and (3) developmental stage. Although this last factor is not so important, the mean size of prey items and the range of prey species eaten by Auax imperator and Aeshna cyanea larvae increased with predator size. Comparisons between prey availability and diets indicated differential selectivity by these predators.
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Catherine Blois (1985) studied this question.
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