Abstract
Hybothoracaphis gen. nov. with one new species Hybothoracaphis laevigata sp. nov. on Quercus aquifolioides from Tibet, China is described and illustrated in the aphid tribe Nipponaphidini. The phylogenetic position of the new genus within Nipponaphidini is investigated using multiple genes, and a key to Hybothoracaphis and allied genera is provided.
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