Appendix

Tab. S1 : Retention indices (RI), CHC compound identifications and the respective relative quantities as well as standard deviations (in %) for all tested cockroach and termite species. Non-detectable amounts of the respective compounds are indicated by hyphens. Where compound identifications were ambiguous due to multiple possible methyl branch positions based on the detected ion pairs, all possible compound configurations are given. Retention indices we calculated according to the position of detected n -alkanes in our samples and, where not available, with a C21-40 n -alkane standard run under the same conditions. Please note that for compounds beyond C40, then -alkane positions had to be extrapolated according to the average distances between n -alkanes.