Title: Collection of wing images for conservation of honey bees (Apis mellifera) biodiversity in Europe Authors: Andrzej Oleksa, Kazimierz Wielki University, Bydgoszcz, Poland Eliza Căuia, Adrian Siceanu, Institute for Beekeeping Research and Development, Bucharest, Romania Zlatko Puškadija, Marin Kovačić, University of Osijek, Faculty of Agrobiotechnical Sciences Osijek, Croatia M. Alice Pinto, Pedro João Rodrigues, Instituto Politécnico de Bragança, Bragança, Portugal Fani Hatjina, Leonidas Charistos, Hellenic Agricultural Organization - DEMETER, Nea Moudania, Greece Maria Bouga, Agricultural University of Athens, Athens, Greece Janez Prešern, Agricultural Institute of Slovenia, Ljubljana, Slovenia Irfan Kandemir, Ankara University, Ankara, Turkey Slađan Rašić, EDUCONS University, Sremska Kamenica, Serbia Szilvia Kusza, University of Debrecen, Debrecen, Hungary Adam Tofilski, University of Agriculture in Krakow, Krakow, Poland Description: Identification of honey bee (Apis mellifera) from various parts of the world is essential for protection of their biodiversity. The identification can be based on wing measurements which is inexpensive and easy available. In order to develop such identification there are required reference samples from various parts or the world. We provide collection of 26481 honey bee fore wing images from 13 countries in Europe: Austria (AT), Croatia (HR), Greece (GR), Moldova (MD), Montenegro (ME), Poland (PL), Portugal (PT), Romania (RO), Serbia (RS), Slovenia (SI), Spain (ES), Turkey (TR). For each of the country there are three files starting with the two letter country code (indicated earlier in the parentheses): XX-wing_images.zip, XX-raw-coordinates.csv and XX-data.csv, which contain wing images, raw landmark coordinates and geographic coordinates, respectively.