Russo, A., & Mazzeo, G. 1992 Rhizoecus americanus (Hambleton) et Pseudaulacaspis cockerelli (Cooley) (Homoptera Coccoidea) dannosi alle piante ornamentali in Italy.. Bollettino di Zoologia Agraria e di Bachicoltura Ser. II, 24(2): 215-221

Notes: Title in English: [Rhizoecus americanus (Hambleton) and Pseudaulacaspis cockerelli (Cooley) (Homoptera Coccoidea): pest of ornamental plants in Italy.] Abstract: Descriptions of these two newly recorded species for Italy; synonymy; morphology; taxonomy; distributions; hosts; key to identification.