Average Euclidean distances between sounds emitted by parasite larvae and ants.

Normalised Euclidean distances (mean ± SD) between the sounds produced by larvae of the two parasite species (Maculinea alcon and M. teleius) in pre-adoption and post-adoption phases and the stridulations emitted by Myrmica scabrinodis queens and workers. Euclidean distances were calculated using the four sounds parameters: peak power (dB), peak frequency (Hz), IQRBW (Hz), pulse length (s).