Fig. 5From: RNA interference-mediated knockdown of 3, 4-dihydroxyphenylacetaldehyde synthase affects larval development and adult survival in the mosquito Aedes aegyptiMorphology of vertical and horizontal sections of larval abdominal integument of different larval stages by TEM. a–d Vertical sections of integument from the first- to the fourth-instar larvae, respectively. e–h Horizontal sections of integument of the first- to fourth-instar larvae, respectively. Abbreviations: exo, exocuticle; endo, endocuticleBack to article page