''Ferrisia'' is a genus of
mealybug
Mealybugs are insects in the family Pseudococcidae, unarmored scale insects found in moist, warm habitats. Of the more than 2,000 described species, many are considered pests as they feed on plant juices of greenhouse plants, house plants and ...
s.
Taxonomic history
David T. Fullaway
circumscribed In geometry, a circumscribed circle for a set of points is a circle passing through each of them. Such a circle is said to ''circumscribe'' the points or a polygon formed from them; such a polygon is said to be ''inscribed'' in the circle.
* Circum ...
the genus in 1923. He included one species: ''
F. virgata'', which was initially described in ''
Dactylopius
''Dactylopius'' is a genus of insect in the superfamily Coccoidea, the scale insects. It is the only genus in the family Dactylopiidae.Van Dam, A. R. and B. May. (2012)A new species of ''Dactylopius'' Costa (''Dactylopius gracilipilus'' sp. nov.) ...
'' and had been transferred to ''
Pseudococcus''.
In 1929,
Ryoichi Takahashi
(April 6, 1898—July 17, 1963) was a Japanese entomologist. His research focused on hemiptera, including aphids, whiteflies, and scale insect
Scale insects are small insects of the Order (biology), order Hemiptera, suborder Sternorrhyncha. Of ...
proposed ''Ferrisiana'' as a
replacement name
In biological nomenclature, a ''nomen novum'' (Latin for "new name"), replacement name (or new replacement name, new substitute name, substitute name) is a replacement scientific name that is created when technical, nomenclatural reasons have mad ...
because he thought the existence of the mollusk genus ''
Ferrissia
''Ferrissia'' is a genus of small, air-breathing freshwater limpets, aquatic gastropod mollusks in the family Planorbidae, the ram's horn snails and their allies.
Species
Species within the genus ''Ferrissia'' include:
* '' Ferrissia baconi'' ...
'' meant ''Ferrisia'' was an invalid
junior homonym
In biology, a homonym is a name for a taxon that is identical in spelling to another such name, that belongs to a different taxon.
The rule in the International Code of Zoological Nomenclature is that the first such name to be published is the s ...
. ''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
The International Code of Zoological Nomenclature (ICZN) is a widely accepted Convention (norm), convention in zoology that rules the formal scientific name, scientific naming of organisms treated as animals. It is also informally known as the I ...
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
California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...
population of ''F. virgata''.
of
pistachios in and
almonds in the state.
* ''
Ferrisia kaki''
* ''
Ferrisia kondoi''
* ''
Ferrisia malvastra''
* ''
Ferrisia meridionalis''
* ''
Ferrisia milleri''
* ''
Ferrisia multiformis''
* ''
Ferrisia pitcairnia
''Ferrisia'' is a genus of mealybugs.
Taxonomic history
David T. Fullaway Circumscription (taxonomy), circumscribed the genus in 1923. He included one species: ''Ferrisia virgata, F. virgata'', which was initially described in ''Dactylopius'' an ...
''
* ''
Ferrisia quaintancii''
* ''
Ferrisia setosa''
* ''
Ferrisia terani''
* ''
Ferrisia uzinuri''
* ''
Ferrisia virgata''
* ''
Ferrisia williamsi''
References
Sternorrhyncha genera
Pseudococcidae
{{Coccoidea-stub