A lepidopterous leafminer was observed on coffee trees on a citrus and vegetable farm in the Letsitele district in the Lowveld (Eastern Transvaal). The altitude of the farm is at 1800 ft. (540 m) and the annual rainfall is approximately 635 mm (25 inch). An isolated plot of about 100 Coffea arabica trees, variety ""Kent"", were found to be infested for the first time during September 1961. The plants were four to five years old at this stage and were growing without shade. The leaf miner observed is similar or closely related to Leucoptera meyricki Ghesquiï¿½re (= L. coffeella Guï¿½r.) of the family Lyonetiidae, Lepidoptera.