Atlas of the scale insects of North America - Ferris, Gordon Floyd, 1893-1958. (Stanford, California : Stanford University Press, 1973)
Series I- The diaspididae (Part I). Series II and III- The diaspididae (Part II and III). Series IV- The diaspididae (Part IV). Series V- The pseudococcidae (Part I). Volume VI- The pseudococcidae (Part II). Volume VII- The familisaclerdidae, asterolecaniidae conchaspididae, dactylopiidae, and lacciferidae
Keywords: Scale -- insects; Insects -- Pictorial works; Insects -- North America