puparium

During the pupal stage, the puparium is brown in color and the same shape as the larvae.

The change in colour of the puparium can determine the age of the pupa.

The puparium is covered by a dirty white cocoon.

The females remain all their lives in this puparium where they will be visited by the males for the purpose of copulation.

After emerging from a host, the white maggot forms a smooth, reddish brown case called a puparium around itself.

After three larval instars, a white pre-pupa which immediately forms a hard dark puparium.

After pupation, the winged adult emerges from the puparium and flies in search of a host.

Oviposition is into the egg or larva and emergence is from the puparium.

Barring any disturbances to the cocoon, an adult flea will emerge from the puparium after 9-15 days.

The fourth instar is the puparium.

During this time, the larval skin which was initially milky white actually shrinks and hardens to form a dark brown puparium.

The larva immediately hardens and becomes a darker color forming a puparium, which will contain the pupa.

During the next stage of its life cycle, the larva will molt into a pupa inside of the puparium.

They are, however, muscomorphs, and thus have a particular type of pupal case resembling a rounded barrel and called "puparium".

The pupal stage takes place inside the puparium, an elliptical shell formed by the last exuvial transformation of the larva.

Ecdysone and 20-hydroxyecdysone regulate larval molts, onset of puparium formation, and metamorphosis.

The puparium ranges in color from dull red or brownish yellow to dull white, and is about 5 to 6 mm in length.

Though the Nasonia young develop inside of the host's puparium, as they do not directly enter the body of their prey they are considered ectoparasites.

They are called "Cyclorrhapha" ('circular-seamed flies') with reference to the circular aperture through which the adult escapes the puparium.

A newborn pre-pupa will immediately darken, form the puparium and begin to pupate pupae on the forest floor, or where the deer bedded.

Then the larvae encapsulate in the puparium and undergo a four-day-long metamorphosis (at 25 C), after which the adults eclose (emerge).

The way in which the opening of the puparium, at the time of adult emergence, distinguishes between two large systematic groups, the Aschiza and Schizophora.

Then, the larva puparium, a sclerotized or hardened cuticle of the last larval instar, develops into the pupa.

Tsetse next develop a hard external case, the puparium, and become pupae-small, hard shelled, oblongs with two distinctive, small, dark lobes at one end.

They do still have a puparium with a circular emergence opening, but it is not as precisely ellipsoid in shape as is typical for other muscoids.