The first report of the genus Schizomyia (Diptera: Cecidomyiidae) in Taiwan, with description of a new species forming stem galls on Maesa perlaria var. formosana (Primulaceae)

[Display omitted] •Gall midge genus Schizomyia is reported for the first time in Taiwan.•A new species, Schizomyia maesae Elsayed, Lin & Tokuda, is described and illustrated.•Schizomyia maesae forms irregular galls on stems of Maesa perlaria var. formosana. The genus Schizomyia Kieffer (Diptera: Cecidomyiidae) is newly recorded in Taiwan and Schizomyia maesae Elsayed, Lin & Tokuda n. sp. that forms irregular galls on stems of Maesa perlaria (Lour.) Merr. var. formosana (Primulaceae) is described as new to science. A description of larva, pupa and adults, illustrations and ecological features of the new species are given. http://www.zoobank.org/urn:lsid:zoobank.org:pub:FDCB79DA-1483-48FA-9235-66BFC97AFC65.