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Predation capacity of fourth instars and male and female adults of Podisus maculiventris (Say) (Heteroptera: Pentatomidae) on the different life stages of the southern green stinkbug Nezara viridula (L.) (Heteroptera: Pentatomidae) was measured in the laboratory. Both nymphal and adult predators displayed high predation rates on eggs, nymphs and adults of the southern green stinkbug. However, developmental times of fourth instar P. maculiventris on eggs or nymphal instars of N. viridula were longer than on fifth instars of the cotton leafworm, Spodoptera littoralis (Boisduval) (Lepidoptera: Noctuidae), suggesting that N. viridula is suboptimal prey for the spined soldier bug. Preference experiments in which fourth instar P. maculiventris were given a choice between fourth instars of N. viridula and fifth instars of S. littoralis indicated that the stinkbugs were less vulnerable to predation than the caterpillars, mainly because of their greater agility. The potential role of P. maculiventris in augmentation or conservation biological control of the southern green stinkbug in greenhouse and field crops is discussed.

PREDATION BY PODISUS MACULIVENTRIS ON DIFFERENT LIFE STAGES OF NEZARA VIRIDULA