First report of non-native bamboo longhorn beetle, Chlorophorus annularis (Fabricius, 1787) (Coleoptera: Cerambycidae) from Madagascar

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The bamboo longhorn beetle Chlorophorus annularis has been recently intercepted in several countries and becoming an emerging invasive species of concern.Here, we report the presence of C. annularis in Madagascar based on a verified specimen and citizen science data.The establishment of C. annularis in Madagascar is highly likely, given the multiple independent observations of the species at different locations within close proximity.Molecular evidence supports the morphological identification of the species, with the specimen collected in Madagascar showing closest affinity to a sample from Japan.However, due to limited samples and sequence length, further research is needed to determine the introduction pathway.We also briefly discuss the potential risks associated with the establishment of C. annularis in Madagascar and the need for coordinated actions to prevent its establishment in the country.

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