These giant butterflies are big enough to rival the size of mammoths. How they do this is unknown, but there could be that either there is more oxygen in Dino World, or they are a combination of animals, like a Sinomphore (a type of jellyfish). Buck claimed to have known one of them as a caterpillar, "Before he came out." as he quoted.
- In the filmaker's commentary on the DVD it was nicknamed Mothrasaurus, or Mothra (a giant butterfly-like creature in the Godzilla series)
- The Eye-spots on its wings were mistaken for Rudy's face by Crash and Eddi