In a paper on North American microlepidoptera (Bull. So. Calif. Acad. Sci., vol. 39, pp. 87-89, 1940) Mr. August Busck described two species of Mompha reared by the writer. Information on the type series of M. capella was not published thru accidental loss of one page of the manuscript. Mr. Busck has suggested that the writer furnish the missing data and add rearing notes on both species that might be of interest.