Köhler, G., & Eisenschmidt, J.C. 2005 Schildläuse (Insecta: Coccina) in Thüringen - faunistische Einführung in eine vergessene Insektengruppe. [Scale insects (Insecta: Coccina) in Thuringia/Germany - faunistic introduction into a forgotten insect group].. Thüringer Faunistische Aghandlungen, Erfurt 10: 155-171.

Notes: The faunistic knowledge about scale insects (Coccina) in Thuringia/Germany and their host-plants in the wild is summarized from 16 coccidological papers and about 160 samples. During the 20th century altogether 48 species in 8 families were found. The sampling localities concentrate around Jena and Eisenberg (Eastern Thuringia). Further data are available from the Kyfthäuser and southern Harz mountains and from the surroundings of Gotha. The rest of the country is not investigated. A simple graphic determination key to widely distributed and common species is given. Parthenolecanium corni is among the species discussed.