>>58161955
Adding to this, Caterpie is unequivocally based on the swallowtail caterpillar due to its iconic headcrest. What's the signature trait of swallowtail butterfly? A long protrusion on its lower wing that resembles it's namesake, a swallow's tail. Guess who has a swallow tail wing protrusion? Venomoth. Guess who doesn't at all? Butterfree