FIGURE 23 in Structure and phylogenetic significance of the sternum V glands in Trichoptera 2884

FIGURE 23. SEMs of external structures. A–C: Glossosomatidae. A, B: Anagapetus debilis female, male very similar. A: gland opening on protuberance. B: Close-up of reticulated cuticle on protuberance. C: Protoptila cana female, gland opening in bald area adjacent to transverse groove. D–F: Hydroptilidae. D: Palaeagapetus guppyi (Ptilocolepinae) female, male very similar, gland opening on protuberance. E, F: Hydroptilinae sp. female, male very similar. E: Overview of protuberance with gland opening and long 3-flanged seta. F: Close-up of 3-flanged setae. Go, gland opening. Scale bars: A, C–E = 10 µm; B, F = 1 µm.