Isidiella divitella is a moth in the family Cosmopterigidae. It is found in France, on the Iberian Peninsula, Corsica and Sardinia.
The wingspan is 11âÂÂ12 mm.
The larvae feed on Helichrysum italicum, Helichrysum italicum serotinum, Helichrysum stoechas and Santolina species. They mine the leaves of their host plant. Larvae can be found from July to August.