The nymphal phase is also the one most often associated with infection.

At its nymphal stage, a tick will bite into the skin for a blood meal.

In addition, the fourth nymphal stage is the most vulnerable to predation.

Interestingly, the nymphal pheromone is different from the adult one.

These nymphs go through three nymphal instars during a 2-3 week period.

They have five nymphal stages in their development.

The nymphal development stage lasts between twenty and forty days depending on temperature.

The young go through four nymphal stages and do not leave the nest until after the first moult.

The nymphal skins, which look like transparent peanut shells, may remain on the trees or fall to the ground.

The progression through the five nymphal stages takes a minimum of 42 days, and males spend less time in each stage than the females.

The larval stage is followed by four more nymphal stages with a moult between each one.

Harvestmen pass through four to eight nymphal instars to reach maturity.

It kills larva and keeps adults from completing the last nymphal stage.

In the final nymphal instar, they construct an exit tunnel to the surface and emerge.

The nymphal phase lasts for approximately one year.

The females do not change completely and are likely to be neotenic (exhibiting nymphal characteristics).

The abdomen is relatively soft, and may include remnants of the nymphal gills even in the adult.

The infection is then maintained and can be transmitted to a reservoir organism or humans at the nymphal stage.

Crowding of nymphal apterae will not cause them to develop into alate adults.

A single blood meal is sufficient to carry the larvae into the next spring, when they develop into the second, or nymphal, stage.

The Hare's Ear began as a wet fly, with dry and nymphal versions following.

Nymphal termites are non terminal and can revert back to the worker stage.

Nymphal density also affects the dispersal of water striders.

The developmental process from egg to adult takes about 20 days, the nymphal stage taking about 10 days.

If one or more nymphal stages are absent, then authors may disagree on which stage(s) is(are) present.