I thought I would forward this email to you.
A couple of days ago our work experience student from Paris noticed two different species mating in the flight area - Morpho peleides X Morpho achilles. Thankfully he took a picture which is attached.
Now all we have to do is either be on the look out for hybrid offspring or try and catch M. peleides and M. achilles in the act again, collect them and wait for the female to lay.
I'll keep you posted