摘要 : A new species of oak gallwasp, Cycloneuroterus megaformosanus, n. sp., is described from Taiwan. The species induces integral stem swelling galls on young shoots of Lithocarpus corneus. Data on the diagnosis, distribution, and bio... 展开 A new species of oak gallwasp, Cycloneuroterus megaformosanus, n. sp., is described from Taiwan. The species induces integral stem swelling galls on young shoots of Lithocarpus corneus. Data on the diagnosis, distribution, and biology of this new species are given. Different Cycloneuroterus species are known to induce galls across multiple host plant genera in Fagaceae, so the evolution of host associations in this genus is also discussed briefly. 收起