Taxonomic study of the genus Campylomyza Meigen (Diptera, Cecidomyiidae) in Korea with descriptions of seven new species

The genus <i>Campylomyza</i> Meigen, 1818, belongs to the subfamily Micromyinae (Diptera, Cecidomyiidae). The genus, comprising 40 species, is best known in the Palearctic Region. To date, four species are recorded in Korea: <i>Campylomyzaappendiculata</i>, <i>C.flavipes</i>, <i>C.furva</i>, and <i>C.spinata</i>. Based on our field investigations from 2017 to 2020, five species are newly recorded from Korea (<i>C.abjecta</i>, <i>C.aborigena</i>, <i>C.cornuta</i>, <i>C.cavitata</i>, and <i>C.cingulata</i>) and seven new species are described (<i>C.ambulata</i> <b>sp. nov.</b>, <i>C.angusta</i> <b>sp. nov.</b>, <i>C.convexa</i> <b>sp. nov.</b>, <i>C.cornigera</i> <b>sp. nov.</b>, <i>C.hori</i> <b>sp. nov.</b>, <i>C.odae</i> <b>sp. nov.</b>, and <i>C.salicia</i> <b>sp. nov.</b>), based on morphological identification and molecular analyses. Detailed morphological and molecular data, including mitochondrial <i>COI</i> sequences are provided, with species diagnosis, descriptions, and keys for identification of those species.