''Pemphigus obesinymphae'' is a species of
gall-forming aphid. It creates galls on the leaves of ''
Populus fremontii''.
The species is the only North American aphid known to have soldiers, first
instar nymphs that defend the colony.
References
Eriosomatinae
Hemiptera of North America
Insects described in 1994
{{Aphididae-stub