Erythraeus (Erythraeus) serbicus Sundic, Haitlinger & Hakimitabar sp. n. is described and illustrated based on larvae collected from the host Aphis craccivora (Koch, 1854) in Serbia. Leptus eslamizadehi Saboori, Abrolophus montenegrinus Saboori et al., Charletonia krendowskyi Feider, and Erythraeus (Erythraeus) mariolae Haitlinger are reported for the first time from Serbia