The origin of adaptive radiation in gall inducers(gall midges and gall wasps) which parasitize evergreen trees

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The species composition of gall-inducing insects on broad-leaved evergreen trees, mainly Cecidomyiidae(Diptera) on Lauraceae and Cynipidae(Hymenoptera) on Fagaceae, was investigated in a north eastern part of India and a south-western part of Cambodia. We obtained important data to infer the process of adaptive radiation in the gall-inducing insects and the maintenance mechanism of their biodiversity in combining the current investigations in India and Cambodia with the results of our earlier surveys in the broad-leaved evergreen forests of eastern parts of Asia.