FIGURE 18 in Structure and phylogenetic significance of the sternum V glands in Trichoptera 2884

FIGURE 18. SEMs of external structures. A–D: Philopotamidae. A: Wormaldia planae female, male very similar, gland opening and surrounding scaly patch. B–D: Chimarra obscura female. B: Gland opening in tiny bald patch, male very similar. C: Overview of fenestra. D: Close-up of same. E: Austrotinodes panamensis (Ecnomidae) female, gland opening and surrounding bald area. F: Xiphocentron haitiense (Xiphocentronidae) male, note how the individual 'scales' of the scaly patch overlaps, female similar, with less overlap of 'scales'. Go, gland opening. Scale bars: A–C, E, F = 10 µm; D = 1 µm.