Prof. F. W. Putnam communicated to me a larva of Scenopinus found in his house under a carpet. It belongs very probably to Sc. pallipes Say, which was reared by Mr. Sanborn out of larva found under a carpet. The larva is figured by Prof. A. S. packard, Guide, p. 1 and 401, and Proc. Essex Just., October, 1867, p. 94, where three other larvae found under the carpet are mentioned. There are three European species reared. Sc. senilis (Bouché Naturg. Ins., p. 46) is said to live in rotten fungus on willows and other trees. Sc. fenestralis (Assman Stett. Ent. Z. 1863, p. 400) in over-ripe strawberries; but it has been later suggested that it may belong to another species. Frauenfeld (Verh. zool. Bot. Ges. Wien. 1864, vol. xiv) has reared Sc. fenestralis from larvae found in a horse hair mattress. Prof. Loew records the larvae living in a swallow's nest. Mr. Perris (Ann. Soc. Ent. Fr. 1870, vol. x., p. 230) tells that Dr. Cartereau found in a swallow's nest a pupa of Lucilia dispar containing an imago of Sc. fenestralis which had not been able to leave the pupa of Lucilia, so the larva must have fed on it.