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.

This genus was established by Lord Walsingham in Illustrations of Typical Specimens of Lepidoptera Hetercera in the collection of the British Museum, Part IV., North American Tortricidæ, p. 68 (1879), with emarginana, Wlsm, the only species under it. This variable species was taken in Mendocino and Lake Counties, California, in considerable number (about 40 speciments) in June, 1871, and five varieties were described. His Lordship had the great kindness to give me several examples representing the different varieties.