Hodgson, C.J., & Matile-Ferrero, D. 2002 A new genus and two new species of soft scale off guava (Psidium guajava) in Peruvian Amazonia (Hemiptera, Coccidae).. Revue Française d'Entomologie 24(2)(n.s.): 109-116.

Notes: A new species of Alichtensia Cockerell, 1902, A. couteri sp. n., living on guava trees in Amazonian Peru is described and illustrated based on an adult female. To distinguish it from other species of the genus, a complement to the key of Granara de Willinck is proposed. In addition, another new species living on guava trees and belonging to a new genus, Pharangococcus iquitosensis n. gen. n. sp., is proposed. It is also described and illustrated based on an adult female. The specimens, captured several times in the same place on the same host during different seasons, exhibit certain morphological differences, but nevertheless are considered to be seasonal forms of the same species.