Ferrisia is a genus of mealybugs.
Taxonomic history
David T. Fullaway circumscribed the genus in 1923. He included one species: F. virgata, which was initially described in Dactylopius and had been transferred to Pseudococcus. In 1929, Ryoichi Takahashi proposed Ferrisiana as a replacement name because he thought the existence of the mollusk genus Ferrissia meant Ferrisia was an invalid junior homonym. Ferrisiana was subsequently used by other authors to refer to this genus. In the 1960s, Harold and Emily R. Morrison and Howard L. McKenzie showed that the International Code of Zoological Nomenclature says the difference of one letter is enough to distinguish genera names, making Ferrisia the valid name for the genus.
In 2012, M. B. Kaydan and P. J. Kullan circumscribed a new genus Pseudoferrisia for the species previously known as Ferrisia floridana.
Species
, species include:
Ferrisia claviseta
Ferrisia colombiana
Ferrisia cristinae
Ferrisia dasylirii
Ferrisia ecuadorensis
Ferrisia gilli Formerly thought to be a California population of F. virgata. Economically important pest of pistachios in and almonds in the state. Ferrisia kaki Ferrisia kondoi Ferrisia malvastra Ferrisia meridionalis Ferrisia milleri Ferrisia multiformis Ferrisia pitcairnia Ferrisia quaintancii Ferrisia setosa Ferrisia terani Ferrisia uzinuri Ferrisia virgata Ferrisia williamsi