Elachista radiantella is a moth of the family Elachistidae. It is found in the United States, where it has been recorded from the District of Columbia, Virginia, Ohio, Kentucky and Maine.[1]
The wingspan is 5.5-6.4 mm. Adults have been recorded on wing from June to July.
The larvae feed on Panicum species, including Panicum dichotomum and Panicum clandestinum. They mine the leaves of their host plant.[2]