Summary of peaks, chemical identity of maternal cuticular hydrocarbons and their statistical clustering.

The representative peak for each cluster is highlighted in bold1. Clusters, peaks within clusters and chemical compounds within clusters are numbered according to the order of their retention times. Clusters 3 and 6 (bold) were condition dependent and significant predictors of nymph survival patterns.
1The compound with strongest correlation with its own cluster compared to the next closest cluster (i.e., compounds with lowest 1-r2 ratio) were chosen as cluster representatives.
2Index computed according to [49], and using a series of n-alkane standards (C8–C40).
3Variance explained by the cluster divided by the total variance among the peaks of this cluster.