Pachypsylla
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]
| Pachypsylla | |
|---|---|
 | |
| Hackberry nipplegall | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hemiptera |
| Suborder: | Sternorrhyncha |
| Family: | Aphalaridae |
| Subfamily: | Pachypsyllinae |
| Genus: | Pachypsylla Riley, 1885 |
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
Gallery
Pachypsylla celtidisumbilicus, nymph
Galls of Pachypsylla celtidisumbilicus
Galls of Pachypsylla celtidismamma on hackberry
Galls of Pachypsylla venusta
References
- "zipcodezoo.com page on Pacypsylla". BayScience Foundation, Inc.
- "Hackberry Gall Psyllids". University of Nebraska-Lincoln Extension in Lancaster County.
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