The Rosalia batesi is one of the longicorn beetles. The name Rosalia means a beautiful young woman. The Rosalia batesi's body is a beautiful blue with black spots. When they die, their body turns a rusty red, not leaving a trace of their living beauty.

The Japanese endemic longicorn beetle, R. batesi, is distributed over most of Mainland Japan and has an important function of decomposing dead hardwood in the Japanese forest ecosystem. This species is very popular in Japanese culture, owing to its spectacular appearance and color:

Rosalia batesi was featured as one of the insects in the video game Resident Evil in Insects Puzzle Room on 1st Floor of the Mansion.

Rosalia batesi was also featured as one of the collectable insects in the 2020 video game Animal Crossing: New Horizons.

It also appeared as a beetle saved by Doppio in Episode 26 the 2018 TV anime series JoJo's Bizarre Adventure: Golden Wind.