Coleophora glaucicolella is a moth of the Coleophoridae family. It is found from Europe, east to the Urals and Iran, west to Greenland and North America (where it is found in most of Canada and Ohio). It is also found in China. It occurs in forest-steppe biotopes, wet meadows and meadow-steppe. The wingspan is 10–12 mm. Adults are on wing from June to August at sunrise, dusk and night. The larvae feed on the seeds of Juncus species, including Juncus inflexus, Juncus conglomeratus, Juncus effusus and Juncus gerardii, and supposedly also on Luzula. They create a trivalved, tubular silken case.