Sampo, A., & Olmi, M. 1979 Biology of Puto antennatus (Signoret) on Pinus cembra L. and Picea abies L. in the Aosta Valley (Italy) (Coccoidea Pseudococcidae).. Bollettino del Laboratorio di Entomologia Agraria 'Filippo Silvestri'. Portici 36: 172-178.

Notes: Comparative notes with other species; hosts.