| austria | salzburg | varestrongylus sagittatus | species | 0 | 1 |
| bulgaria | lovech province | varestrongylus sagittatus | species | 473 | 0 |
| canada | alberta | varestrongylus eleguneniensis | species | 8 | 0 |
| canada | manitoba | varestrongylus alpenae | species | 1 | 0 |
| canada | northwest territories | varestrongylus eleguneniensis | species | 9 | 0 |
| canada | nunavut | varestrongylus eleguneniensis | species | 143 | 1 |
| canada | quebec | varestrongylus eleguneniensis | species | 296 | 0 |
| italy | piemonte region | varestrongylus sagittatus | species | 0 | 1 |
| norway | akershus county | varestrongylus alces | species | 16 | 0 |
| norway | akershus county | varestrongylus cf. capreoli 1 ggv-2014 | species | 1 | 0 |
| norway | akershus county | varestrongylus cf. capreoli 2 ggv-2014 | species | 1 | 0 |
| norway | akershus county | varestrongylus cf. capreoli 3 ggv-2014 | species | 1 | 0 |
| norway | akershus county | varestrongylus cf. capreoli 4 ggv-2014 | species | 1 | 0 |
| norway | akershus county | varestrongylus cf. capreoli 5 ggv-2014 | species | 1 | 0 |
| norway | akershus county | varestrongylus cf. capreoli 6 ggv-2014 | species | 1 | 0 |
| norway | akershus county | varestrongylus cf. capreoli 7 ggv-2014 | species | 1 | 0 |
| russia | krasnoyarsk krai | varestrongylus eleguneniensis | species | 2 | 0 |
| united kingdom | | varestrongylus sagittatus | species | 1 | 0 |
| united states | alaska | varestrongylus eleguneniensis | species | 16 | 0 |