| canada | british columbia | gnorimosphaeroma oregonense | species | 2 | 0 |
| united states | california | gnorimosphaeroma noblei | species | 26 | 0 |
| united states | california | gnorimosphaeroma sp. rw00.008 | species | 1 | 0 |
| united states | washington | gnorimosphaeroma oregonense | species | 9 | 0 |