Hi Light-Box !
I know it sounds very far-fetched but I assure you that what I read those many years ago ran atleast vaguely parrallel to what I described above (certainly not exact though)
I think the book also mentioned that this flower was restricted to a certain region of Japan (maybe even a certain island?). It’s a great shame that I cannot remember the plants scientific name or even the general locality mentioned in the book. All I know is that they mentioned it was an Orchid and utilized en-masse killing of insects (some of which might not even have been the intended pollinator?) to achieve cross-fertilization
Like I said, I will do my best to atleast remember or find the name of that book I read, then we’ll have a closer dig from there 