Mine are Atlas & Comet moths, specifically females. It's fun to handle them, feeling their eggs inside, and their anger too Female moths become useless for breeding if not mating with male shortly after hatching, since their eggs develop shells and can't be fetrilized. So, such female gets only one fate - becoming a specimen. And the task of spreading large moth requires it to be gutted
I don't know many butterfly species but when i was in a butterfly house i saw a see through butterfly. I believe it was a glass wing/ Greta Ora. I also like the blue morpho.
The Rajah Brooke's birdwing is a favorite of mine, thanks in part to Animal Crossing. I also like rice paper butterflies.