Japanese wood ant

Found in mountain grassland above about 200 m in northern and central Taiwan and above about 500 m in the south, where it is a dominant species. Nuptial flights occur in almost every month of the year. It is called the Japanese wood ant because it is mainly distributed in Japan, where it was first described. The body is matte black with silvery-white bands on the gaster; workers are monomorphic with no soldier caste, and they move fast.