I'm amazed that we're always only just finding out about this sort of thing... like today. the way it gets reported makes it feel like it's some sort of new innovation that the beetle just came up with, but it really impresses upon you just how much more weirdness nature must have in store for us just in our own backyard.
There really aren't that many people studying insects. Even fewer studying and cataloging plants.
Everyone assumes there's some large academic cohort of etymologists that are busy indexing and recording all natural insect life, but it's usually just some guy paying attention to one thing at a time. And sometimes there are whole families of animals or plants where there's no guy at all.