Ant occurrence dataset regarding Linepithema humile (Mayr, 1868) (Hymenoptera, Formicidae), first recorded in Busan, South Korea

This study contains information regarding the occurrence of ants in the area near Busan station, where the invasion of  Linepithema humile  was reported for the first time in South Korea. The Argentine ant is '100 of World’s Worst invasive Alien Species', commonly discovered in disturbed places, and its spread to other areas causes local ecosystem disturbances. Therefore, we investigated the associated fauna in the invaded areas to determine the L. humile  invasion effects on the native ants in Busan, Korea. This study is based on a field study conducted over four days, from July 12 to July 15, 2022. The location information of the 3,383 individuals, consisting of 14 species of Formicidae in the  L.   humile-invaded   area is also provided. All data in the study site, excluding those regarding  L. humile,  were reported for the first time.