Photo by Drees.
Galls produced by aphid-like immature stages appear as folded leaves on new, terminal growth.
Immature yaupon psyllid nymphs are inside and are associated with a buildup of waxy filaments. This is the only gall-making psyllid on yaupon. However, other psyllid species cause galls to form on the leaves of other plants species. Females lay clusters of eggs on opening leaf buds. Clusters of nymphs occurring together in deformed leaves develop through several stages for about 10 months before beginning to emerge as adults in November.