We present to you complete survey and identification guide to 319 species (378 taxons are considered in details, including subspecies) of butterflies, occurring in Norway (Finnmark Province), Finland, Estonia, Latvia, Lithuania, Romania, Slovakia, Hungary, Belarus, Poland, Ukraine, Moldavia, European Russia (including all North Caucasus administrative units), and Western Kazakhstan (Ural and Atyrau Regions). More about the database >>.

    In comparison with ordinary databases our software is practical tool for identification butterflies due to unique algorithm with highly illustrated characteristic states. For the first time interact polihotomous and multi-entry key is provided with large quantity of textual information as well as drawings or photos and available on-line.