What does doodle bug mean?

"Doodle bug" can refer to different things depending on the context. In one sense, it is a colloquial term for a type of insect, specifically the larval stage of the antlion, which creates traps in sand to catch prey. In a more playful context, "doodle bug" can also refer to a child who enjoys drawing or doodling. Additionally, it has been used informally to describe a small, whimsical or silly creature.