“SáRFIDOS DEL PEDREGAL DE SAN áNGEL, MÉXICO, D. F. (DIPTERA: SYRPHIDAE)”, SerZool, vol. 50, no. 1, pp. 537–552, Sep. 2019, Accessed: Dec. 10, 2025. [Online]. Available: https://anales.ib.unam.mx/index.php/SerZool/article/view/1404