''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-specific, i.e. each plant-louse species only feeds on one plant species (monophagous) or feeds on a few closely related plants ( ...
found in North America. The nymphs of this species induce blister-like galls on the leaves of various
hackberries (''Celtis'' spp.) throughout its range.
It closely related to the more common
hackberry nipplegall psyllid (''Pachypsylla celtidismamma''), which it strongly resembles as an adult.
References
{{Taxonbar, from=Q10614785
Aphalaridae
Insects described in 1890