NEW DATA ON THE GENUS SYRPHUS FABRICIUS, 1775 (DIPTERA: SYRPHIDAE) FROM THE BALKAN PENINSULA INCLUDING THE FIRST RECORD OF SYRPHUS NITRIDIFRONS BECKER, 1921. Acta Ent Serb. 2010;15(1):91-105. Accessed October 5, 2024. http://147.91.73.126/index.php/aes/article/view/113