Caryocolum delphinatella is a moth of the family Gelechiidae. It is found in Abruzzi, the south-western Alps (Alpes-Maritimes, Alpes-de-Haute-Provence, Hautes-Alpes, Isère, Walliser Alpen, Alpi Cozie) and the Pyrenees (Haute-Garonne).
The length of the forewings is 7âÂÂ7.5 mm for males and 6.5âÂÂ7 mm for females. Adults have been recorded on wing from July to early August.
The larvae probably feed on Minuartia and Silene species.