Abstract / Introduction / Summary:
In total 31 ant species belonging to 18 genera in 4 subfamilies were collected from disturbed areas of Ibusuki-shi, mainland Kagoshima, southern Kyushu. Of the 31 species twelve (38.7%) were considered to be alien. The dominant ant species estimated based on the ratio of occurrences to all of the sampling points was Monomorium chinense (0.92), followed by two alien ant species, Tapinoma melanocephalum (0.83) and Pheidole indica (0.75). Pheidole megacephala was found only around the residential area of Yuno- hama. On the other hand, Ph. parva-complex was more widely distributed in the city area of Ibusuki-shi. The alien ant Hypoponera ragusai was recorded for the first time, and the establishment of Paratrechina longicornis was confirmed for the first time, in main- land Kagoshima.