Sex ratio estimates for 20 dance fly species from three genera: Empis, Hilara and Rhamphomyia.

Adult sex ratios (ASR) calculated from two different sampling techniques and operational sex ratio estimates are displayed. Sex ratios shown as the proportion of males (larger values are more male-biased) followed by the lower and upper binomial confidence intervals (confidence level = 0.95). Deviations from 1:1 were calculated using an exact binomial goodness of fit test.本数据集展示了通过两种不同采样技术计算得到的成体性比（Adult sex ratios, ASR）以及操作性比（operational sex ratio）的估算结果。性比以雄性个体占比形式呈现（数值越高，性比偏雄性程度越强），同时附带置信水平为0.95的二项分布置信区间上下限。性比与1:1的偏差通过精确二项拟合优度检验进行计算。