Pachypsylla Explained

Pachypsylla is a genus of psyllids.^[1] 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. ^[2]

Species

The following species are recognised in the genus Pachypsylla:

• Pachypsylla celtidisasterisca Riley, 1890
• Pachypsylla celtidiscucurbita Riley, 1890
• Pachypsylla celtidisgemma Riley, 1885 – hackberry bud gall maker
• Pachypsylla celtidisglobula Riley, 1890
• Pachypsylla celtidisinteneris Mally, 1894
• Pachypsylla celtidismamma (Riley, 1881) – hackberry nipplegall maker
• Pachypsylla celtidispubescens Riley, 1890
• Pachypsylla celtidisumbilicus Riley, 1890
• Pachypsylla celtidisvesicula Riley, 1890 – hackberry blistergall psyllid
• Pachypsylla cohabitans Yang & Riemann, 2001
• Pachypsylla dubia Patch, 1912
• Pachypsylla pallida Patch, 1912
• Pachypsylla tropicala Caldwell, 1944
• Pachypsylla venusta (Osten-Sacken, 1861) – petiolegall psyllid

Notes and References

1. Web site: zipcodezoo.com page on Pacypsylla. BayScience Foundation, Inc..
2. Web site: Hackberry Gall Psyllids. University of Nebraska-Lincoln Extension in Lancaster County.