The Choreutidae fauna of Hungary consists of 8 species. Choreutis nemorana is reported from Hungary for the first time. This adventive species is spreading rapidly in some parts of the country; before 2010 it was known from only a single locality. New information is also given on a further 13 localities which have been previously recorded. here. The Pannonian region is an extra-limited range of species. Permanent populations are known to exist in suitable locations in Hungary in the Transdanubian Mountains and Mecsek Mountains area. However, following several favorable years other colonies may be established in these localities and also in western and northern Hungary (for example in the Mátra- and Bükk Mountains). At present, the moth is only a minor pest in Hungary. The imago flies during in day but can also be collected with light at night. C. nemorana flies in two generations from April to mid-October, at altitudes from sea level to 200-400 m. The adult overwinters. Diagnosis, biological data and habitats of the species are presented here. Information is added to the life history of the species. Text in Hungarian with 13 figures.