NEW DATA ON THE GENUS SYRPHUS FABRICIUS, 1775 (DIPTERA: SYRPHIDAE) FROM THE BALKAN PENINSULA INCLUDING THE FIRST RECORD OF SYRPHUS NITRIDIFRONS BECKER, 1921. Acta Entomologica Serbica, [S. l.], v. 15, n. 1, p. 91–105, 2010. Disponível em: http://147.91.73.126/index.php/aes/article/view/113.. Acesso em: 5 oct. 2024.