TOWER CASE MOTH
Bagworms are no more worms than slow-worms, inch-worms or glowworms. They are a family of moths whose caterpillars live particularly sheltered lives. The ‘bags’ in question are usually rather ramshackle – fragments of dead vegetation stitched together higgledy-piggledy with silk. But the caterpillars of the tower case moth, an Australian bagworm, are more fastidious. Not only do they cut twigs of exactly the right girth to exactly the right length and group them accordingly – adding larger sections as they grow – they apparently colour-match them, too. But then, they don’t get out much. The females will never leave their bag, transforming into wingless adults that mate, lay eggs and die there.