In this study, Cixiidae and Issidae (Hemiptera: Auchenorrhyncha) species collected from various localities in Sinop Kastamonu between the years 2016-2018 were evaluated. 12 belonging to 7 genera 4 determined. addition, distributional data of Turkey world, collection given. Among identified species, Kervillea placophora, Mycterodus confusus (Issidae) Reptalus panzeri (Cixiidae) recorded for firs...