As an expert in the field of entomology, I can tell you that ladybugs, which are a type of beetle, do not have lungs in the way that mammals do. Instead, they breathe through a system of tubes called a
tracheal system. This system allows oxygen to be delivered directly to the body tissues. The tracheae are connected to the outside air through small holes called
spiracles, which are located on the sides of the ladybug's body.
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