Hyperomyzus lactucae Linnaeus was recorded in Egypt on Son-thus oleraceus at Giza and North Sinai Governorates. The main characters of H. lactucae L. are the great number of secondary sensoria on the 3rd. 4th and 5th antenna! segments, the presence of an irregular broken area dorsally on the abdominal 3-5 seg‌ments and the swollen comicles. Measurements and descriptions of different forms of the aphid species were studied. SYNONYMY Aphis lactucae Kaltenvach, M. der Fam. der NI. p. 37 (1843). Aphis lactucae Linnaeus, Ann. Nat. Hist., Ser. 2, Vol. 2, p. 49 (1849). Rhopalosiphum ribis Linnaeus, Koch, Die Pfl. Aph. p. 39 (1854). Rhopalosiphum lactucae (Kaltenbach) Passerini, Aphididae, Italicae, p. 20 (1863). Amphorophora cosmopolitana Mason, Proc. V. S. Nat. Mus., Vol. 67, p. 16-26 (1925). Hyperomyzus lactucae Bonier, KL. Mitt. Lifer Blatt!. (ed. Bomer), p. 2. Nasonovia (Hyperomyzus) lactucae, Eastop, Colonial Office, Hull Printers Limited, Lon- , don.