IPP spectra vs. SMM spectra of C. obsoletus . A: Complete IPP spectrum of a C. nubeculosus specimen from m/z 1.6-16 kDa with ca. 200 detectable peaks. B: A zoom of the m/z range from 1,600-4,020 Da of the IPP spectrum is depicted. This corresponds to the range where the IPP and SMM spectra overlap, ca. 100 peaks are detectable. C: The same range shown for an SMM spectrum of a specimen of the same species; ca. 260 peaks are detectable.