In this study, Thysanoptera (thrips) species in different citrus varieties in Balcali location of Adana province, Turkey was determined and also population fluctuations of the three common thrips species namely, the western flower thrips, Frankliniella occidentalis (Pergande), Hawaiian flower thrips, Thrips hawaiiensis (Morgan) and onion or cotton thrips, Thrips tabaci Lindeman in 2017 and 2018 were investigated. A total of 13 Thysanoptera species were identified with the study. Frankliniella occidentalis was found as the main species of thrips, followed by T. hawaiiensis, which was the first detected in Turkey in 2015 and spread rapidly. While F. occidentalis and T. tabaci were mainly observed during the flowering period, T. hawaiiensis were recorded in flowers in the fruit-bearing trees in late-May. Besides, T. hawaiiensis was found to have higher numbers on flowers of Kutdiken and Euroka lemon varieties, where flowering was relatively higher in 2018. Frankliniella occidentalis was noted in significantly high numbers in Washington orange and Meyer lemon, where flowering was higher than those of other citrus varieties studied. Because of T. hawaiiensis infection, a low rate (2%) of staining was recorded only on the lemon variety (Kutdiken) in 2018. This result may show that F. occidentalis and T. tabaci, will not cause problems in citrus fruits, including lemon but T. hawaiiensis may be problematic in Adana, especially in lemon varieties flowering year-round.