Bagworm Moths Build Tiny Portable Houses for Themselves That Are Almost Impenetrable

Each species of bagworm moth makes a distinctive looking case, depending on what kind of components are on hand when they start building their tiny homes. Therefore, sometimes it’s easier to tell the bagworm moth species apart by taking a look at their case, rather than the animal itself. They come in every size and form: cases are usually between 1 and 15 centimeters long, and some may look primitive, while others resemble a pavilion or a log house. As they grow, bagworms expand and attach new twigs or other elements to their homes.