| Therevidae | ||||||||
| Therevinae | ||||||||
| Litolinga sp. (3) | ||||||||
| Ozodiceromyia coloradensis (James) (5, as Psilocephala) | ||||||||
| O. hoemorrhoidalis (Macquart) (4) | ||||||||
| O. platancala (Loew) (4) | ||||||||
| Pandivirilia albifrons (Say) (6) | ||||||||
| P. melampodia (Loew) (6) | ||||||||
| Phycinae | ||||||||
| Cyclotelus pictipennis (Wiedemann) (2) | ||||||||
| C. rufiventris (Loew) (1,2) | ||||||||
| 1. In OSU Collection - Det. C. T. Greene | ||||||||
| 2. In OSU Collection - Det. D. E. Hardy | ||||||||
| 3. In OSU Collection - Det. D. Webb & M. Irwin | ||||||||
| 4. In OSU Collection - Determiner Unknown | ||||||||
| 5. Reported in Diptera Catalog | ||||||||
| 6. Reported by Webb & Metz, 2003 | ||||||||
| 4 genera - 8 species | ||||||||