The insect hides its antennae and legs under its body when at rest. “Playing dead” like this makes it harder to spot. The larvae are the ones that cause damage, because the adults do not eat during their short existence. The larvae feed off a great variety of foods (stored foods, dried vegetable matter, etc.), but take a particular liking to spices. The larvae can also seriously damage books, and are capable of perforating sheet lead or thin sheets of aluminum. They are also sometimes found in dried flowers.