A table on pg. 51 of Russo's Plant Galls of the Western United States (2021) lists "Ypsolopha sp." as a moth that induces a stem gall on Ephedra. No further information found so far. If anyone raises a moth from an Ephedra stem gall, compare to Y. angelicella, which is known to use Ephedra as a host, and to other Ypsolopha.
”- Gallformers Contributors: (2024) Gallformers ID Notes©