Pachypsylla laevovesicula

The inducer of this gall is unknown or undescribed.
Family: Aphalaridae | Genus: Pachypsylla
Hosts: Celtis laevigata
Detachable: integral
Color: yellow, green
Texture: hairless
Abundance:
Shape: numerous
Season: Summer
Related:
Alignment: integral
Walls: thin
Location: upper leaf, lower leaf, between leaf veins
Form: leaf blister
Cells: monothalamous
Possible Range:i
Common Name(s):
Synonymy:
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image of Pachypsylla laevovesicula
image of Pachypsylla laevovesicula
image of Pachypsylla laevovesicula
image of Pachypsylla laevovesicula
image of Pachypsylla laevovesicula
image of Pachypsylla laevovesicula
image of Pachypsylla laevovesicula
image of Pachypsylla laevovesicula
image of Pachypsylla laevovesicula
image of Pachypsylla laevovesicula
image of Pachypsylla laevovesicula
image of Pachypsylla laevovesicula
A study of the hackberry gallmaker genus Pachypsylla (Homoptera: Psyllidae)
“

Pachypsylla laevovesicula n. sp. (laevigata regular blister gallmaker)

Gall: Like that of P. celtidlsvesicula [Flat, inconspicuous; cell circular, 1 to 2 mm in diameter; slightly elevated above with a slight central protuberance; below also slightly projecting with a definite small central nipple] but larger, cells about 2 mm in diameter at the time of gallmaker emergence.

Hosts and distribution: This species appears to be essentially restricted to C. laevigata and in Central Texas was found only on trees that could be readily identified as this host. However, in northwestern Oklahoma it was found on trees having features tending toward C. reticulata and C. occidentalis.

In Central Texas P. laevovesicula was found to be second in abundance only to P. celtidisasterisca among the blade pachypsyllids of C. laevigata and in some environments it was found to be the most numerous one.

”

- John Riemann: (1961) A study of the hackberry gallmaker genus Pachypsylla (Homoptera: Psyllidae)©

Further Information:
Pending...
See Also:
Unless noted otherwise in the ID Notes, observations of this gall are collected in the Observation Field Gallformers Code with value laevovesicula on iNaturalist. You can view them here:
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