| canada | alberta | parelaphostrongylus andersoni | species | 1 | 0 |
| canada | newfoundland and labrador | parelaphostrongylus andersoni | species | 1 | 0 |
| canada | northwest territories | parelaphostrongylus andersoni | species | 35 | 0 |
| canada | nunavut | parelaphostrongylus andersoni | species | 4 | 0 |
| united states | alaska | parelaphostrongylus andersoni | species | 32 | 0 |
| united states | california | parelaphostrongylus andersoni | species | 0 | 1 |
| united states | georgia | parelaphostrongylus andersoni | species | 0 | 1 |
| united states | maine | parelaphostrongylus andersoni | species | 0 | 1 |
| united states | michigan | parelaphostrongylus andersoni | species | 0 | 1 |
| united states | oregon | parelaphostrongylus andersoni | species | 0 | 1 |
| united states | pennsylvania | parelaphostrongylus andersoni | species | 0 | 1 |
| united states | south carolina | parelaphostrongylus andersoni | species | 0 | 2 |
| united states | washington | parelaphostrongylus andersoni | species | 0 | 2 |