Redescriptions of three Japanese conifer-infesting gall midges (Diptera: Cecidomyiidae) described by M. Inouye, with description of a new genus for Aschistonyx eppoi

Three Japanese conifer-infesting gall midges (Diptera: Cecidomyiidae), Aschistonyx eppoi Inouye on Juniperus chinensis var. globosa, Dasineura nipponica Inouye on Larix kaempferi, and Janetiella kimurai Inouye on Pinus parviflora are redescribed based on specimens kept in the collection of Naturalis Biodiversity Center, The Netherlands, in the collection of Kyushu University, Japan, and those newly obtained in 2021 and 2022 from their type localities in Japan. In the redescriptions, we refer mainly to morphological features not sufficiently given in the original descriptions. For A. eppoi, a genus Byakushincecis is created. We provide genetic data of the three species for future taxonomic and phylogenetic studies. In addition, we identified Byakushincecis eppoi infesting bonsai of Juniperus chinensis var. sargentii at a nursery garden in Saitama, Japan. These trees were intended for export to the EU.