transporting adult butterflies

[Americo Bonkewitzz Zoology and Entomology]

Dear Sir/Madam:

I have to keep alive about 100 ADULT butterflies for 
as much as possible before being released.

I would like to know whether you can help with 
some information of how to keep them alive and for
how long is possible without actually killing them.

Do I need to drop their metabolism by cooling them 
at say 14C? ..or what is the optimum temperature and 
general conditions for transporting them alive?

Any information would be very much appreciated.

Sincerely,

Dr Americo N. Bonkewitzz
University of Natal
Pietermaritzburg