Average percentage of eggs consumed, plotted against average pairwise chemical distances among F. fusca eggs and between F. fusca eggs and eggs of the other species. FE, F. exsecta (Euclidean distance: 12.03 ± 0.62); FP, F. pressilabris (11.53 ± 0.45); FT, F. truncorum (17.05 ± 0.48); FC, F. cinerea (14.84 ± 0.59); FL, F. lemani (11.66 ± 0.44); nnm, F. fusca non-nest-mate (0.80 ± 0.31); nm, F. fusca nest-mate (0.41 ± 0.23).