instar

IPA: ɪnstɑr

Any one of the several stages of postembryonic development which an arthropod undergoes, between molts, before it reaches sexual maturity.
An arthropod at a specified one of these stages of development.
(by extension) A stage in development.

Examples of "instar" in Sentences

Cage experiments with first instar larvae and eggs.
The period between each molt is known as an instar.
Fourth instar caterpillars look very different from the 2nd and 3rd instar.
With each instar the nymph becomes progressively more like an adult cockroach.
In the final nymphal instar, they construct an exit tunnel to the surface and emerge.
When these shots were taken, none had matured to the fifth instar stage of green and black bands with yellow spots along the black bands.
[4] The convenient term 'instar' has been proposed by Fischer and advocated by Sharp (1895) for the form assumed by an insect during a stage of its life-story.
You look at the maggots, and say things like "ah yes, that's a 2nd instar Protophormia terranovae, from which I deduce this man has been dead for between 32 and 43 hours."
As for pooping, the larva only poops once in its childhood, in that, the feces is stored at the end of the digestive tract as a superconcentrated pellet, and is only released after the molt of the second to final instar before pupating.