Which of this creature is describe as a lady firefly without wings in James and the Giant Peach?

In "James and the Giant Peach" by Roald Dahl, the creature described as a "lady firefly without wings" is the Glow-worm. She is characterized by her glowing light and is one of the friendly insects that accompany James on his adventures inside the giant peach. The Glow-worm’s gentle and nurturing nature adds to the whimsical charm of the story.