| australia | queensland | gasterophilus haemorrhoidalis | species | 0 | 1 |
| australia | queensland | gasterophilus intestinalis | species | 0 | 1 |
| australia | western australia | gasterophilus intestinalis | species | 0 | 2 |
| brazil | sao paulo | gasterophilus nasalis | species | 0 | 1 |
| canada | saskatchewan | gasterophilus intestinalis | species | 1 | 0 |
| china | | gasterophilus haemorrhoidalis | species | 4 | 0 |
| china | | gasterophilus intestinalis | species | 2 | 0 |
| china | | gasterophilus nasalis | species | 6 | 0 |
| china | | gasterophilus nigricornis | species | 6 | 0 |
| china | | gasterophilus pecorum | species | 4 | 0 |
| china | heilongjiang | gasterophilus intestinalis | species | 34 | 0 |
| china | inner mongolia | gasterophilus intestinalis | species | 50 | 0 |
| china | inner mongolia | gasterophilus nasalis | species | 48 | 0 |
| china | inner mongolia | gasterophilus nigricornis | species | 32 | 0 |
| china | inner mongolia | gasterophilus pecorum | species | 38 | 0 |
| china | qinghai | gasterophilus nasalis | species | 18 | 0 |
| china | qinghai | gasterophilus pecorum | species | 56 | 0 |
| china | xinjiang | gasterophilus intestinalis | species | 45 | 0 |
| china | xinjiang | gasterophilus nasalis | species | 78 | 0 |
| china | xinjiang | gasterophilus nigricornis | species | 89 | 0 |
| china | xinjiang | gasterophilus pecorum | species | 157 | 0 |
| egypt | | gasterophilus intestinalis | species | 1 | 0 |
| ethiopia | addis ababa | gasterophilus nasalis | species | 0 | 1 |
| france | midi-pyrenees region | gasterophilus intestinalis | species | 1 | 0 |
| germany | bavaria | gasterophilus intestinalis | species | 0 | 3 |
| india | | gasterophilus intestinalis | species | 1 | 0 |
| ireland | leinster province | gasterophilus intestinalis | species | 0 | 1 |
| italy | | gasterophilus intestinalis | species | 1 | 0 |
| italy | apulia region | gasterophilus haemorrhoidalis | species | 1 | 0 |
| italy | apulia region | gasterophilus intestinalis | species | 4 | 0 |
| italy | apulia region | gasterophilus nasalis | species | 4 | 0 |
| italy | apulia region | gasterophilus pecorum | species | 1 | 0 |
| italy | umbria region | gasterophilus haemorrhoidalis | species | 0 | 1 |
| italy | umbria region | gasterophilus inermis | species | 0 | 1 |
| italy | umbria region | gasterophilus intestinalis | species | 0 | 1 |
| italy | umbria region | gasterophilus nasalis | species | 0 | 1 |
| italy | umbria region | gasterophilus pecorum | species | 0 | 1 |
| kazakhstan | atyrau region | gasterophilus pecorum | species | 0 | 1 |
| kazakhstan | west kazakhstan region | gasterophilus pecorum | species | 0 | 1 |
| mexico | chiapas | gasterophilus intestinalis | species | 0 | 1 |
| netherlands | utrecht province | gasterophilus intestinalis | species | 0 | 1 |
| russia | astrakhan oblast | gasterophilus pecorum | species | 0 | 1 |
| russia | kalmykia republic | gasterophilus pecorum | species | 0 | 1 |
| south africa | eastern cape province | gasterophilus pecorum | species | 0 | 1 |
| switzerland | schwyz region | gasterophilus intestinalis | species | 0 | 1 |
| turkey | izmir province | gasterophilus intestinalis | species | 0 | 1 |
| united kingdom | england | gasterophilus intestinalis | species | 1 | 1 |
| united kingdom | england | gasterophilus nasalis | species | 0 | 1 |
| united kingdom | wales | gasterophilus intestinalis | species | 0 | 1 |
| united kingdom | wales | gasterophilus pecorum | species | 0 | 1 |
| united states | delaware | gasterophilus intestinalis | species | 0 | 1 |
| united states | kentucky | gasterophilus intestinalis | species | 0 | 8 |
| united states | kentucky | gasterophilus nasalis | species | 0 | 4 |
| united states | louisiana | gasterophilus intestinalis | species | 0 | 1 |
| united states | texas | gasterophilus intestinalis | species | 0 | 1 |
| united states | texas | gasterophilus nasalis | species | 0 | 1 |