Nota Lepidopterologica (Feb 2023)
Detection of the Large White butterfly Pieris brassicae (Linnaeus, 1758) (Lepidoptera, Pieridae) in Rapa Nui (Easter Island)
Abstract
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The Large White butterfly (Pieris brassicae (Linnaeus, 1758)) originally from the Palaearctic and previously introduced to South Africa and Chile is detected on Rapa Nui (Easter Island). The records correspond to all stages of the life cycle: eggs, caterpillars, pupa and adults. Caterpillars were found feeding on Tropaeolum majus. The introduction is likely to have occurred from mainland Chile, as the species has not been reported in French Polynesia. A dark green coloration present on the underside of the wings is congruent with the one reported from the Chilean population. The origin of colonisation still remains to be tested using molecular tools.
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