Stenorrhynchan
Guides
Pachypsyllinae
Pachypsyllinae is a subfamily of jumping plant lice (psyllids) in the family Aphalaridae. It comprises three genera: Celtisaspis, Pachypsylla, and Tetragonocephala. Members of this subfamily are associated with hackberry trees (Celtis species) as their host plants. The group was previously classified in the family Carsidaridae, but recent revisions have placed it in Aphalaridae. The genus Pachypsylla includes species that form distinctive plant galls on hackberry leaves and stems.