Ultrastructure and morphology of antennal sensilla of the adult diving beetle Cybister japonicus Sharp
Fig 5
The morphology and ultrastructure of the elongated s. placodea of diving beetle C. japonicus Sharp.
(A) SEM of the elongated s. placodea, showing many pores on the surface that perforate the outer cuticle. (B) The multiple pores under the SEM with density of 170 pores/μm2. (C) Longitudinal section through the elongated s. placodea, showing three dendrites enclosed in the dendrite sheath. (D) Ultrastructure of the enlongated s. placodae under TEM showing the intercuticular space between the inner and outer cuticles, where the dendrites lose their arrangement, with the dendritic branches occupy the whole space, and the cuticular wall of these sensilla is around 0.5 μm. p: pore, d: dendrite, db: dendritic branches.