Valentibulla californica
(Coquillett, 1894)
Elliptical Stem Gall Fly
Valentibulla californica is a of fruit fly in the Tephritidae, commonly known as the Elliptical Stem Gall Fly. The species was described by Coquillett in 1894. Like other members of the Valentibulla, it is associated with gall formation on plant stems. The species is found in the United States, particularly in California as suggested by its specific epithet.

Pronunciation
How to pronounce Valentibulla californica: //væˌlɛntɪˈbʊlə ˌkælɪˈfɔrnɪkə//
These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.
Images
Distribution
United States, with records from California.
Host Associations
- Asteraceae - gall inductionMembers of the Valentibulla are known to induce galls on Asteraceae; specific plants for V. californica are not documented in available sources.
Ecological Role
Gall-forming insect; creates stem galls that may provide microhabitats for other organisms.
Similar Taxa
- Other Valentibulla speciesSimilar gall-forming habits on Asteraceae; distinguished by specific gall and geographic distribution.
More Details
Taxonomic Notes
The Valentibulla belongs to the tribe Eurostini within the Tephritinae. in this genus are characterized by their association with stem gall formation on composite plants.
Sources and further reading
- BugGuide
- Wikipedia
- GBIF taxonomy match
- iNaturalist taxon
- Catalogue of Life
- The Big 43: The California Native Plants, Plus One, Studied in UC Davis Research | Bug Squad
- Bohart Museum: Learn about California's State Insect on UC Davis Picnic Day | Bug Squad
- A Mural Like No Other | Bug Squad
- A Flash of Orange: Welcome, California Tortoiseshell! | Bug Squad
- California Dogface Butterfly: What the Fire Did | Bug Squad
- Bembicid Holdings | Entomology Research Museum