non-functional larval spiracle [FBbt_00000412]
Spiracle that only opens during moulting, allowing ejection of the chitinous lining of or the trachea of the previous instar. The rest of the time, these are only identifiable as a thickening of the cuticle. During larval stages, the spiracles of tracheal metameres 2-9 are all of this type.
non-functional larval spiracle
ID: FBbt_00000412
Anatomy Larva
Spiracle that only opens during moulting, allowing ejection of the chitinous lining of or the trachea of the previous instar. The rest of the time, these are only identifiable as a thickening of the cuticle. During larval stages, the spiracles of tracheal metameres 2-9 are all of this type.
The spiracle of the first tracheal metamere of first instar larvae is non-functional (Manning and Krasnow, 1993).
Open in VFB 3D Browser →Subclasses of non-functional larval spiracle (10 total)
| Thumbnail | Name | Tags |
|---|---|---|
| non-functional larval spiracle of abdominal segment 4 | Anatomy, Larva | |
| non-functional larval spiracle of abdominal segment 5 | Anatomy, Larva | |
| non-functional larval spiracle of abdominal segment 6 | Anatomy, Larva | |
| non-functional larval spiracle of abdominal segment 7 | Anatomy, Larva | |
| non-functional larval spiracle of thoracic segment | Anatomy, Larva |
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