Pachypsylla is a genus of North American 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 infestation.
Species
The following species are recognised in the genus Pachypsylla:
- Pachypsylla celtidisasterisca <small>Riley, 1890</small>
- Pachypsylla celtidiscucurbita <small>Riley, 1890</small>
- Pachypsylla celtidisgemma <small>Riley, 1885</small> â hackberry bud gall maker
- Pachypsylla celtidisglobula <small>Riley, 1890</small>
- Pachypsylla celtidisinteneris <small>Mally, 1894</small>
- Pachypsylla celtidismamma <small>(Riley, 1881)</small> â hackberry nipplegall maker
- Pachypsylla celtidispubescens <small>Riley, 1890</small>
- Pachypsylla celtidisumbilicus <small>Riley, 1890</small>
- Pachypsylla celtidisvesicula <small>Riley, 1890</small> â hackberry blistergall psyllid
- Pachypsylla cohabitans <small>Yang & Riemann, 2001</small>
- Pachypsylla dubia <small>Patch, 1912</small>
- Pachypsylla pallida <small>Patch, 1912</small>
- Pachypsylla tropicala <small>Caldwell, 1944</small>
- Pachypsylla venusta <small>(Osten-Sacken, 1861)</small> â petiolegall psyllid
Gallery
References