Relatedness (mean ± SD; R-value) among the workers sampled from each acacia.

Mutualist refers to Pseudomyrmex ferrugineus, Parasite to P. gracilis.‘*’indicates significant deviation from 0.75 (as among full sisters in monogynous colonies) according to T-test. n denotes number of individuals included from each acacia.互利共生型（Mutualist）指棕红伪切叶蚁（Pseudomyrmex ferrugineus），寄生型（Parasite）指纤细伪切叶蚁（P. gracilis）。星号（*）表示经t检验（T-test），其数值与单雌菌落中全同胞姐妹间的0.75比例存在显著偏差。n代表从每株金合欢（acacia）中纳入的个体数量。