Are yellow ladybugs poisonous to touch?

Yellow ladybugs, like most ladybugs, are not poisonous to touch. While they can secrete a fluid that has a strong odor and may cause mild irritation if ingested or if it comes into contact with sensitive skin, they are generally harmless to humans. Their bright coloration serves as a warning to predators that they may be unpalatable, but they do not pose a significant threat to people.