humuli). Humulus is the genus for hops and Linnaeus knew that the ghost moth fed on the roots of hops; he was not aware of the actual footplant of the common swift. Notes The flight season refers to the British Isles. This may vary in other parts of the range. References Bibliography Chinery, Michael (1986, reprinted 1991). Collins Guide to the Insects of Britain and Western Europe. Skinner, Bernard (1984). The Colour Identification Guide to Moths of the British Isles. External links Lepiforum e.V. Hepialidae Moths described in 1758 Moths of Asia Moths of Europe Taxa named by Carl Linnaeus