PUPAE NEST

PUPAE NEST
PUPAE NEST PUPAE NEST PUPAE NEST PUPAE NEST PUPAE NEST PUPAE NEST
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Description

PUPAE NEST

The Pupae Nest, using sheets of bobble foam, is the innovative method used by WWB to keep subterranean pupae, in particular, and cocoons in ideal conditions in the emerging cage. 

•  Developed specifically for underground pupae: also ideal for cocoons and unattached pupae.

•   Immediate access to pupae for inspection, without disturbance.

•  Provides healthy and moist conditions.

•  Easy observation of pupae that are forming up prior to emergence. 

•  Allows the breeder to anticipate the emergence of required males or females.

•  Ensures hygiene and avoidance of harmful bacteria.

This method has proved to be better than using soil or compost, because it enables instant inspection whenever required, for removal of empty pupal shells or any dead pupae, and to be able clean up, with minimum disturbance of the pupae. The pupae rest in the depressions, in natural conditions of humidity and hygiene.  If they were on plain foam sheets they would roll around, and would be less able to benefit from the humidity assisted by the depressions, which also provide separation. The covering sheet of foam is placed with the bobble side down,  so both of the indented  sides are together, which allows some airflow and eases the passage for adults to emerge and climb to dry their wings.

The pupae and foam should be sprayed thoroughly (not just misted) every day, or more often in higher temperatures.  The base of the upper tray is perforated to allow drainage. It rests in an unperforated tray with some blocks to separate the two trays and receive the drained water. This drainage allows liberal watering, without risk of the pupae lying in water.  

Cocoons also do well resting on a bobble foam sheet, usually without another sheet covering them, though in exceptionally hot conditions, a moist foam sheet on top of the cocoons, helps to maintain humidity. Cocoons require very liberal watering, not a just a fine mist. Soak them thoroughly, safe in the knowledge that they are well drained.

From time to time, it is good practice to remove the pupae, wash the foam thoroughly, spray with dilute bleach (about 10% solution, which is not harmful to the pupae) then replace the pupae on nice wet foam. In summer the foam is normally washed about every 2- 3 weeks, using hot water with a touch of bleach added, but without soap or detergent which would create problems with froth and would take too long to rinse away. The washing interval depends on the extent of hatching activity and temperature. Any hint of smell indicates bacteria and means that washing is overdue. When adults emerge from the pupa, a waste product Meconium, is ejected. This is only harmful if left so long that it spoils the freshness and encourages bacteria. Empty pupal shells and any other organic matter, are best frequently removed, to avoid build-up of mould or bacteria. In the emerging cage, pupae that are crowded together can develop a slime, caused by bacteria, which slows development and can kill pupae. Pupae nests help to eliminate such risk and periodic washing gives maximum hygiene.

When washing the foam sheets, it is also important to wash and disinfect the two trays. If you are incubating quite a lot of pupae it makes it more convenient to have two Pupae Nests, so you can move the pupae straight into a prepared clean Nest. To encourage this, there is a price reduction for two nests bought together.

TO INCUBATE pupae and COCOONS  An emerging cage should have netting sides with plenty of ventilation. This provides grip for emerging adults, and you can add some sticks.  In summer conditions, you can incubate temperate pupae at room temperature, without further heating, but when it is cool you may wish to add warmth.  When you heat, the ambient temperature can be raised to 25º over a few days, and increase further to 30º.  The air around the cage needs to be heated: they don’t do so well if heat is directed at the pupae or the cage. Don't stand the cage on a heat source. You cannot over-water the cocoons as long as they are able to drain. You can hang cocoons: if you do they then need more frequent and heavy watering. 

The Pupae Nest is based on standard seed tray size 24 x 38 cms which fits the Standard Pyjama Cage. 

PUPAE NEST One Large £19.95   Two Large £13.95 each =  £33.90  

 

Exotic butterfly pupae should be incubated, totally shaded, in a tropical greenhouse. The ambience of a tropical greenhouse is not easy to emulate. Some breeders are successful in re-creating such conditions, but it us not sufficient simply to achieve a high temperature and humidity.  For details of how to attach tropical butterfly pupae to twigs, or bamboo, please see the introduction to the Exotic Butterfly section of the WWB website. Exotic butterfly pupae that are not suspended but lying loose, can be laid on the bobble foam of a Pupae Nest, and left uncovered. Remember incubating pupae must always be in full shade.