For me, the start of the show at the Butterfly Farm weren’t the insects but the reptiles.
One was a rhino snake from South America: long, thin elegant and vividly green. It was in a vivarium, in a space which was attracting large crowds, so I looked but didn’t
Wandering more freely in the main hothouse area, there’s a pair of iguanas, also from South America. They can be a little hard to spot, preferring to find a comfortable perch igh up, perhaps partly hidden by the luxuriant vegetation. Once they have been spotted, a crowd usually gathers below, looking upwards towards the roof.