''Pachypsylla'' is a genus of
psyllids
Psyllidae, the jumping plant lice or psyllids, are a family of small plant-feeding insects that tend to be very host-specific, i.e. each plant-louse species only feeds on one plant species (monophagous) or feeds on a few closely related plants ( ...
. Species of the genus ''Pachypsylla'' lay eggs on the leaves of the ''
Celtis occidentalis
''Celtis occidentalis'', commonly known as the common hackberry, is a large deciduous tree native to North America. It is also known as the nettletree, sugarberry, beaverwood, northern hackberry, and American hackberry. It is a moderately long-l ...
'' tree. Upon hatching, the young psyllids become encased in a
gall
Galls (from the Latin , 'oak-apple') or ''cecidia'' (from the Greek , anything gushing out) are a kind of swelling growth on the external tissues of plants, fungi, or animals. Plant galls are abnormal outgrowths of plant tissues, similar to be ...
which the young leaf parts grow in response to the infestation.
Species
The following species are recognised in the genus ''Pachypsylla'':
*''
Pachypsylla celtidisasterisca
''Pachypsylla'' is a genus of psyllids. Species of the genus ''Pachypsylla'' lay eggs on the leaves of the ''Celtis occidentalis'' tree. Upon hatching, the young psyllids become encased in a gall which the young leaf parts grow in response to the ...
''
Riley, 1890
*''
Pachypsylla celtidiscucurbita
''Pachypsylla'' is a genus of psyllids. Species of the genus ''Pachypsylla'' lay eggs on the leaves of the ''Celtis occidentalis'' tree. Upon hatching, the young psyllids become encased in a gall which the young leaf parts grow in response to the ...
''
Riley, 1890
*''
Pachypsylla celtidisgemma
''Pachypsylla'' is a genus of psyllids. Species of the genus ''Pachypsylla'' lay eggs on the leaves of the ''Celtis occidentalis'' tree. Upon hatching, the young psyllids become encased in a gall which the young leaf parts grow in response to the ...
''
Riley, 1885 – hackberry bud gall maker
*''
Pachypsylla celtidisglobula
''Pachypsylla'' is a genus of psyllids. Species of the genus ''Pachypsylla'' lay eggs on the leaves of the ''Celtis occidentalis'' tree. Upon hatching, the young psyllids become encased in a gall which the young leaf parts grow in response to the ...
''
Riley, 1890
*''
Pachypsylla celtidisinteneris
''Pachypsylla'' is a genus of psyllids. Species of the genus ''Pachypsylla'' lay eggs on the leaves of the ''Celtis occidentalis'' tree. Upon hatching, the young psyllids become encased in a gall which the young leaf parts grow in response to the ...
''
Mally, 1894
*''
Pachypsylla celtidismamma
''Pachypsylla celtidismamma'', known generally as the hackberry nipplegall maker or hackberry psylla, is a species of plant-parasitic hemipteran in the family Aphalaridae
Aphalaridae is a bug family in the superfamily Psylloidea
Psylloidea< ...
''
(Riley, 1881) – hackberry nipplegall maker
*''
Pachypsylla celtidispubescens
''Pachypsylla'' is a genus of psyllids. Species of the genus ''Pachypsylla'' lay eggs on the leaves of the ''Celtis occidentalis'' tree. Upon hatching, the young psyllids become encased in a gall which the young leaf parts grow in response to the ...
''
Riley, 1890
*''
Pachypsylla celtidisumbilicus
''Pachypsylla'' is a genus of psyllids. Species of the genus ''Pachypsylla'' lay eggs on the leaves of the ''Celtis occidentalis'' tree. Upon hatching, the young psyllids become encased in a gall which the young leaf parts grow in response to the ...
''
Riley, 1890
*''
Pachypsylla celtidisvesicula
''Pachypsylla celtidisvesicula'', commonly called the hackberry blistergall psyllid, is a species of aphalarid psyllid
Psyllidae, the jumping plant lice or psyllids, are a family of small plant-feeding insects that tend to be very host-speci ...
''
Riley, 1890 – hackberry blistergall psyllid
*''
Pachypsylla cohabitans
''Pachypsylla'' is a genus of psyllids. Species of the genus ''Pachypsylla'' lay eggs on the leaves of the ''Celtis occidentalis'' tree. Upon hatching, the young psyllids become encased in a gall which the young leaf parts grow in response to the ...
''
Yang & Riemann, 2001
*''
Pachypsylla dubia
''Pachypsylla'' is a genus of psyllids. Species of the genus ''Pachypsylla'' lay eggs on the leaves of the ''Celtis occidentalis'' tree. Upon hatching, the young psyllids become encased in a gall which the young leaf parts grow in response to the ...
''
Patch, 1912
*''
Pachypsylla pallida
''Pachypsylla'' is a genus of psyllids. Species of the genus ''Pachypsylla'' lay eggs on the leaves of the ''Celtis occidentalis'' tree. Upon hatching, the young psyllids become encased in a gall which the young leaf parts grow in response to the ...
''
Patch, 1912
*''
Pachypsylla tropicala
''Pachypsylla'' is a genus of psyllids. Species of the genus ''Pachypsylla'' lay eggs on the leaves of the ''Celtis occidentalis'' tree. Upon hatching, the young psyllids become encased in a gall which the young leaf parts grow in response to the ...
''
Caldwell, 1944
*''
Pachypsylla venusta
''Pachypsylla'' is a genus of psyllids. Species of the genus ''Pachypsylla'' lay eggs on the leaves of the ''Celtis occidentalis'' tree. Upon hatching, the young psyllids become encased in a gall which the young leaf parts grow in response to the ...
''
(Osten-Sacken, 1861) – petiolegall psyllid
Gallery
References
Aphalaridae
Psylloidea genera
{{Sternorrhyncha-stub