respiratory trumpet造句

• However, pupae do not feed during this stage; typically they pass their time hanging from the surface of the water by their respiratory trumpets.
• As with the larva, the pupa of most species must come to the surface frequently to breathe, which they do through a pair of respiratory trumpets on their cephalothoraxes.
• Adult females lay their eggs on the surface of water in areas of emergent vegetation to which hatchling larvae attach themselves with a modified siphon, on the roots or submerged stems, and where they remain throughout development; pupae also attach themselves the plants by means of a modified respiratory trumpet, and remain there until the adult is ready to emerge.