| Flatidae | ||||||
| Flatinae | ||||||
| Nephesini | ||||||
| Flatormenis chloris (Melichar) (1,2,3) | ||||||
| Ormenoides venusta (Melichar) (1,2,5) | ||||||
| Metcalfa pruinosa (Say) (1,2,3,4) | ||||||
| Selizini | ||||||
| Mistharnophantia sonorana Kirkaldy (2) | ||||||
| 1. In OSU Collection - Det. D. C. Arnold | ||||||
| 2. In OSU Collection - Det. C. R. Bartlett | ||||||
| 3. In OSU Collection - Det. K. C. Doering | ||||||
| 4. In OSU Collection - Det. W. A. Drew | ||||||
| 5. In OSU Collection - Det. Reeves | ||||||
| 4 genera - 4 species | ||||||