George, R.S., 1957. Siphonaptera from Gloucestershire, 4. Entomologist?s Gazette, 8(2): 138-139., p.175.

George, R.S., 1957. The Fleas (Siphonaptera) of Gloucestershire. Report of the Cheltenham and District Naturalist?s Society, 1955-1956: pp.8-10., p.176.