Stanisław Franciszek Adamczewski (1909–1987), a Polish entomologist, graduate of the University of Warsaw (1939) and Maria Curie-Skłodowska University (doctorate, professorship), professionally associated with the Institute of Zoology at the Polish Academy of Sciences; from 1930 until the end of his life, Adamczewski held various positions at the State Zoological Museum (later Institute of Zoology, Polish Academy of Sciences); during the war, he was involved in securing and rescuing its collection, and subsequently in its reconstruction. Adamczewski conducted research on the species composition and abundance of butterflies in the Białowieża Forest and in the environments exposed to anthropogenic pressure (Warsaw), as well as on butterfly migration; in 1963-1970, he created a butterfly collection (now held at the Institute of Zoology, Polish Academy of Sciences).