sex determination,2

[Dalius Dapkus]

last sentence in my message should be: "I do not know any 
other factors that determine the sex of Lepidoptera group".

Dalius


> Hi all,
> 
> does anybody klnow when the sex of a butterfly is determined? Is it 
> set in the egg right after laing? Or is it possible to change the sex by 
> e.g. temperature after the egg is laid like in some fish?
> 
> Thanks in advance,
> Andrea Knebel
> University Bielefeld,
> Germany
> 
>