Another ambiguity is the report by Novak et al. (1967) that V. steyskali Foote [as munda (Coquillett)] larvae form "large, polythalmous galls" on stems of C. nauseosus in Idaho.
”- Richard D. Goeden, David H. Headrick, and Jeffrey A. Teerink: (1995) Life history and description of immature stages of Valentibulla californica (Coquillett) (Diptera: Tephritidae) on Chrysothamnus nauseosus (Pallas) Britton in southern California©
Reference: https://www.biodiversitylibrary.org/page/16152770#page/571/mode/1up