Yasuda, S. 1981a [Natural enemies of Pseudaulacaspis pentagona (Hemiptera: Homoptera: Diaspididae) and their seasonal prevalence.]. Japanese Journal of Applied Entomology and Zoology 25(4): 236-243.

Notes: Studies were conducted on the identification of insects acting as natural enemies of P. pentagona and on their seasonal prevalence in the Tohoku district (Japan). The natural enemies identified were: Aspidiotiphagus citrinus, Anabrolepis lindingaspidis and Anicetus sp. of Hymenoptera, Chalcidoidea. These had never been recognized as parasitic natural enemies of P. pentagona. Rodolia limbata, Stethorus sp., Sukunahikona japonica, Scymnus hilaris, Nephus phosphorus, Serangium japonicum and Cybocephalus nipponicus of Coleoptera were acting as predators. Two predacious natural enemies, Dentifibula sp. and Lestodiplosis sp. of Diptera, Cecidomyiidae, were recorded for the first time in Japan. The seasonal prevalance and abundance of parasitic wasps and predacious natural enemies in a mulberry plantation were also investigated.