Figure 3From: Species determination of Culicoides biting midges via peptide profiling using matrix-assisted laser desorption ionization mass spectrometryScatterplot from unbiased PCAs using 64 spectra from midges of 7 different Culicoides species. Species-specific colour coding corresponds to that shown in Figure 1. Spectra belonging to one species are outlined by convex shape. The dashed lines indicate 95% concentration ellipses. A: PCA containing all spectra; B spectra from the obsoletus group only; C: spectra from the pulicaris group only.Back to article page