Distribution of Strumigenys species in Hong Kong A S. canina, S. elegantula, and S. emmae B S. exilirhina, S. feae, and S. formosa C S. heteropha, S. hexamera, and S. hirsuta sp. n. D S. kichijo, S. lantaui sp. n., and S. mazu. Circles represent species previously recorded from Hong Kong, diamonds represent newly recorded species, and stars represent new species. Newly recorded introduced species are shown with red squares, and previously recorded introduced species are shown with red circles. Green shaded portions of the map correspond with higher levels of tree cover, and grey with lower levels of tree cover.