Köhler, G., & Nussbaum, R.P. 2009 Invasive Schildlausarten auch in Thüringen: Pulvinaria regalis Canard, 1968 und Diaspidiotus perniciosus (Comstock, 1881) (Insecta: Coccina: Coccidae, Diaspididae).. Thüringer Faunistische Abhandlungen 14: 113-124

Notes: [Title in English: Invasive scale insects also in Thuringia: Pulvinaria regalis Canard, 1968 and Diaspidiotus perniciosus (Comstock, 1881) (Insecta: Coccina: Coccidae, Diaspididae).] Pulvinaria regalis Canard, 1968, Diaspidiotus perniciosus (Comstock, 1881) and Pseudaulacaspis pentagona (Targioni Tozzetti) (Insecta: Coccina: Coccidae, Diaspididae) recorded from Thuringia, Germany.