First issued in release COL22.
Last used in release COL23.1
Published in
Metcalf, Z. P. (1957). Part 13. Flatidae and Hypochthonellidae. In: Metcalf Z. P. 1954 - General Catalogue of the Homoptera. Fascicule IV, North Carolina State College, Raleigh(United States of America). P. 1-565.