Caloptilia elongella (commonly known as pale red slender) is a moth of the Gracillariidae family. It is known from all of Europe east to eastern Russia. It is also found in North America from British Columbia, south to California and east in the north to New Hampshire and New York. The wingspan is 14–16 millimetres (0.55–0.63 in). There are two generations per year, with adults on wing in June and again during September, after which they hibernate and reappear in spring.