A reader bought a used couch recently and found some tiny brown worms or larvae in it. More precisely, she found the worms or larvae in the lining of the couch, so they had evidently made their way fairly far into the piece of furniture. The reader at first thought she might have found bed bugs, but ruled this out because whatever she found doesn’t have an oval-shaped body like a bed bug. Rather, the creatures she found have more elongated bodies, albeit ones that are very short. She estimates that they are only a few millimeters long. Other relevant body features include darkened heads and some hairs, or “hair-looking things,” that stick out of the end of the creatures’ bodies. What type of worm or larvae did our reader find in her couch?