| canada | alberta | orthostrongylus macrotis | species | 3 | 1 |
| canada | alberta | protostrongylus boughtoni | species | 0 | 2 |
| canada | northwest territories | protostrongylus stilesi | species | 0 | 3 |
| canada | yukon | protostrongylus boughtoni | species | 0 | 1 |
| finland | central finland region | protostrongylus pulmonalis | species | 0 | 1 |
| france | | protostrongylus oryctolagi | species | 2 | 0 |
| france | | protostrongylus pulmonalis | species | 10 | 0 |
| france | alsace region | protostrongylus oryctolagi | species | 7 | 0 |
| france | aquitaine region | protostrongylus oryctolagi | species | 79 | 0 |
| france | basse-normandie region | protostrongylus oryctolagi | species | 2 | 0 |
| france | franche-comte region | protostrongylus pulmonalis | species | 74 | 0 |
| france | languedoc-roussillon region | protostrongylus oryctolagi | species | 53 | 0 |
| france | languedoc-roussillon region | protostrongylus pulmonalis | species | 6 | 0 |
| france | provence-alpes-cote d'azur region | protostrongylus oryctolagi | species | 1 | 0 |
| france | provence-alpes-cote d'azur region | protostrongylus pulmonalis | species | 1 | 0 |
| france | rhone-alpes region | protostrongylus pulmonalis | species | 11 | 0 |
| germany | | protostrongylus pulmonalis | species | 1 | 0 |
| india | jammu and kashmir | protostrongylus rufescens | species | 0 | 1 |
| italy | south tyrol autonomous region | protostrongylus pulmonalis | species | 0 | 1 |
| italy | veneto region | protostrongylus pulmonalis | species | 0 | 1 |
| morocco | rabat-sale-zemmour-zaer | protostrongylus rufescens | species | 0 | 2 |
| russia | | orthostrongylus macrotis | species | 2 | 0 |
| tajikistan | | protostrongylus sp. aek-2013a | species | 1 | 0 |
| u.s. virgin islands | | protostrongylus rufescens | species | 0 | 1 |
| united states | alaska | protostrongylus stilesi | species | 0 | 1 |
| united states | montana | protostrongylus stilesi | species | 0 | 1 |
| united states | oregon | protostrongylus stilesi | species | 0 | 1 |
| united states | south dakota | protostrongylus stilesi | species | 0 | 1 |
| uzbekistan | | protostrongylus hobmaieri | species | 4 | 0 |
| uzbekistan | | protostrongylus rufescens | species | 10 | 0 |
| uzbekistan | | spiculocaulus leuckarti | species | 1 | 0 |