In the October number of the St. Paul Medical Journal, Dr. Burnside Foster, the editor, gives a very interesting case of larvæ found in the cutaneous tissues of a three weeks old infant, that a specialist in Dipterology identified as the above species. The case was not one of Dr. Foster's patients, but was from Superior, Wis. If the identification is correct, and I see no reason why it should not be, for the specialist was the same one who identified the first larva found in the boy at Chester, Illinois, as a Gastrophilus, and he had one of the types before him for comparison, the case is important. How they came to be in the child's skin is an interesting question, and in a brief note in reply to Dr. Foster's article, I suggested an examination of the excreta of the mother.