Thrips setosus Moulton, 1928 (Thysanoptera: Thripidae), one of the Tospovirus vectors, was found at a commercial greenhouse in Korea. It damaged to leaves of hydrangea (Hydrangea macrophylla). The thrips widely distributes in Japan, being regarded as its origin. Recently, it invaded in Europe such as the Netherlands, France, and Germany. Unlike Japan, it was found on Hydrangea plants in European countries. In Korea, the thrips was recorded in 1974 by Woo. However, examination of voucher specimens reveals that the record is not true. According to the collection data since 2000, its distribution in Korea is rarely limited in Jeonbuk and Jeju. For identification, representative morphological characteristics and COI barcoding results are provided with possibility of introduction from Europe.