Caryocolum leucomelanella is a moth of the Gelechiidae family. It is found in most of Europe, except Ireland, Great Britain, the Benelux, Portugal, Fennoscandia and the Baltic region. It is also found in Russia (the Ural Mountains and Siberia: Altai, Transbaikalia and Tuva). The length of the forewings is 3.5–5 mm for males and 4-5.5 mm for females. The forewings are blackish with an orange-brown subcostal streak near the base and with white markings.