Phloeosinus metasequoiae sp. nov. (Coleoptera, Curculionidae, Scolytinae, Phloeosinini), a new insect pest of Metasequoia glyptostroboides in China

We describe herein a previously unknown species of bark beetle, <i>Phloeosinusmetasequoiae</i> Ning, <b>sp. nov.</b>, which was discovered in the Xingdoushan National Nature Reserve, Hubei Province, China. This new species can be distinguished from other species in the genus <i>Phloeosinus</i> Chapuis, 1869 by its deeply emarginate compound eyes, coarse frontal and prothoracic surfaces, reticulate texture, and deeply V-shaped basal margin of the elytra. Phylogenetic analyses based on the cytochrome oxidase I (COI) and the large nuclear ribosomal subunit (28S) genes indicated that the new species represents an independent lineage with the closely related <i>Phloeosinusaubei</i> (Perris, 1885), to which it has a 95% similarity. The new species is known only from the type locality. Diagnoses, descriptions, photographs, and a distribution map are presented, along with a description of host plant damage.