Abstract / Introduction / Summary:
044-001044-001Active colonies of the famous tramp ant Anoplolepis gracilipes were found for the first time on mainland Kyushu, southern Japan in 2017. They were located in container yards and their nearby sites on the plots of New Kagoshima Port and Taniyama Port. A nest located at Taniyama Port was a large mature colony containing many winged queens and males, and probably hundreds of workers. Workers of a small nest found at New Kagoshima Port were sampled to compare the head width and scape length with those of workers of the mature colony of Taniyama Port. They were almost the same in both head width and scape length, showing that the nest of New Kagoshima Port was part of a mature colony escaped from a container. All the nests were supposed to be exterminated by physical destruction and poisonous bait trapping.