Schmutterer, H. 1951 Zur Lebensweise der Nadelholz-Diaspidinen (Homoptera, Coccoidea, Diaspididae, Diaspidinae) und ihrer Parasiten in den Nadelwäldern Frankens.. Zeitschrift für Angewandte Entomologie 33: 111-136.

Notes: Title in English: [About the behavior of the resinous wood Diaspidid (Homoptera, Coccoidea, Diaspididae, Diaspidinae) and their parasites in the coniferous forests of Franconia.] Includes keys and illustrations for placing 7 diaspidids.