A reader wrote to us a little while ago about a small brown worm that she found in her house. She said she “could find this worm under my bed sheets and floor,” and we aren’t sure is we should take this as an expression of the mere possibility that the worm could be found on the bed sheets and floor, as her use of the subjunctive mood seems to suggest, or if the reader did in fact find the worm under her bed sheets and then on the floor. In any case, she sent a picture of the “worm” in question, which actually looks like a larva, not a worm. More specifically, she appears to have found a carpet beetle larva, which the gods have fated us to write about without end. Below we explain why we think our reader found a carpet beetle larva.