Caryocolum junctella is a moth of the family Gelechiidae. It is found from most of Europe (except Ireland, the Netherlands, Croatia, Portugal and possibly Spain and parts of the Balkan Peninsula)Fauna Europaea east to China and Japan. et al. 2010: The gelechiid fauna of the southern Ural Mountains, part II: list of recorded species with taxonomic notes (Lepidoptera: Gelechiidae). Zootaxa, 2367: 1–68. Preview
The length of the forewings is 4.5–5 mm. Adults have been recorded on wing from April to August. They overwinter.
The larvae feed on Cerastium arvense, Cerastium glomeratum, Stellaria graminea and Stellaria media. Young larvae mine the leaves of their host plant.
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