Aphids are considered serious pests of agriculture crops in Kosovo and worldwide. Objective of this paper was to confirm the most present plant aphids in some hybrids of lettuce grown in greenhouses. Experiment was conducted during the cropping season of 2017-2018 in five greenhouses located in Bernice, municipality of Prishtina. Experiment was set according to randomized Fisher blocks in three replications. With purpose to confirm the aphid species in lettuce cultivated in greenhouses, as a method was performed aphid leaf count of 100 lettuces leaves. From the total number of plant aphids’ recorded (5685 individuals) Myzus persicae participated with 53.49%, Macrosiphum euphorbiae with 21.65%, Aphis gossypii with 9.02%, Aulocarthum solani with 8.32% and Myzus ascalonicus with 7.51%. The results we have obtained during of this research were shown to have statistical significant differences regarding the number of these pests in lettuce hybrids that were grow in greenhouses.