Valentibulla dodsoni Foote is a recently described species (Blanc and Foote, 1987) from New Mexico which represents a considerable range extension for the genus. Valentibulla was established by Foote and Blanc (1959) and the other 5 members of the genus are restricted to California, Idaho, Nevada, Oregon, Utah, and Washington (Blanc and Foote, 1987). The host plant reported here, C n. ssp. bigelovii, is added to the only other host plant records for this genus: C parryi and two other subspecies of C nauseosus (Wangberg, 1978). The gall of this species is a rather inconspicuous swelling of the stem (Fig. 1 D). The biology and behavior of V. dodsoni is described elsewhere (Dodson, 1987). [According to this paper all other Valentibulla species are found outside of New Mexico, Arizona, and Colorado, so maybe any Valentibulla found within this region can be presumed to be dodsoni]

- Gary Dodson: (1987) Host-Plant Records and Life History Notes on New Mexico Tephritidae (Diptera)^©

Reference: https://www.biodiversitylibrary.org/item/54981#page/627/mode/1up