Richard, C. 1998 Ortheziidae.. Catalogue of Palaearctic Coccoidea. Plant Protection Institute, Hungarian Academy of Sciences Budapest, Hungary 526 pp.

Notes: Reviews Arctorthezia cataphracta, A. occidentalis, A. vardziae, Newsteadia floccosa, N. kanayana, Nipponorthezia ardisiae, N. hispanica, Orthezia arenariae, O. insignis, O. shirakensis, O. urticae and O. yasushii. Each entry lists citations to original descriptions, new generic combinations, redescriptions, revisions and monographs; distributions; host plants; brief biological notes.