Is there such a thing as box fleas?

Yes, "box fleas" is a colloquial term sometimes used to refer to fleas that infest items like boxes, especially those containing old or second-hand goods. These fleas are typically common species like cat fleas or dog fleas that can be found in various environments. They are not a distinct type of flea but rather a reference to their presence in specific settings. Proper cleaning and pest control can help eliminate them.