FIGURE 11 in Structure and phylogenetic significance of the sternum V glands in Trichoptera 2884

FIGURE 11. Drawings based on wholemounts. The structures are viewed through the cuticle and anterior is to the left with down being mesal; thus all drawings show the left gland. Muscle fibres are grey and all structures are drawn as if they were transparent. Transparency of cuticle is not indicated. A: Agraylea multipunctata (Hydroptilidae) female, male very similar. B: Palaeagaptus guppyi (Hydroptilidae) male, female very similar. The secretory tissue was not discernible, possibly due to decomposition. Go, gland opening; Ip, insertion point for muscle; Op, origin point for muscle; Rs, gland reservoir; Sc, secretory cells; L-t, Lepidoptera-type opening muscle.