CreatureData

Horse botfly

Gasterophilus inermis (Brauer, 1859)

Status not recordedinsects

The horse botfly (Gasterophilus inermis) is a species in the family Oestridae, order Diptera.

No freely licensed photo yet

Quick facts about the horse botfly

Weight
Not recorded
Length
Not recorded
Lifespan
Not recorded
Main food
Not recorded
Habitat
Not recorded
Young per litter or clutch
Not recorded
Conservation status
Not recorded
Countries on record
Not recorded

Where does the horse botfly live?

Not recorded

Where has it been introduced?

The Global Register of Introduced and Invasive Species lists the horse botfly as introduced in 1 country.

  1. United States

Introduced means brought by people and now present; invasive means the country's checklist records an impact. A species can be native to one part of a country and introduced in another. Source: Global Register of Introduced and Invasive Species (CC BY 4.0).

Is the horse botfly endangered?

No conservation assessment is recorded for this species in our sources. That is not the same as being safe: it has not been matched to an assessment.

How is the horse botfly classified?

  1. kingdomAnimalia
  2. phylumArthropoda
  3. classInsecta
  4. orderDiptera
  5. familyOestridae
  6. genusGasterophilus
  7. SpeciesGasterophilus inermis (Brauer, 1859)

Synonyms Gastrus inermis, Oestrus inermis

Other names and names in other languages (2)
  • Agant de la myiase gastrophilienne des joues de chevalFrench
  • ЯкорёкRussian

Catalogue of Life

Relatives of the horse botfly

Other species in the same genus Gasterophilus.

Horse bot fly

Gasterophilus intestinalis

OestridaeNo free photo yet

Nose bot fly

Gasterophilus haemorrhoidalis

OestridaeNo free photo yet

CompareHorse botfly vs Horse bot flyHorse botfly vs Nose bot flyHorse botfly vs Throat bot flyHorse botfly vs Dark-winged horse botfly

Common questions

Answered only where our data holds the answer.

Is the horse botfly an invasive species?

The Global Register of Introduced and Invasive Species lists the horse botfly as introduced in 1 country: United States, but does not flag it as invasive in any of them.

What kind of animal is the horse botfly?

The horse botfly (Gasterophilus inermis) belongs to the family Oestridae in the order Diptera.

Sources and how to cite this page

Data as of 2026-11-14. How this page is put together.

Embed a card for this animal on your own site

Copy this code. The card shows the photo with its credit, key facts and a link back to this page.

Preview the card

APA

CreatureData. (2026). Horse botfly (Gasterophilus inermis). Retrieved from https://creaturedata.com/animals/horse-botfly

MLA

“Horse botfly (Gasterophilus inermis).” CreatureData, 2026, https://creaturedata.com/animals/horse-botfly.

BibTeX
@misc{horse_botfly_2026,
  title = {Horse botfly (Gasterophilus inermis)},
  author = {{CreatureData}},
  year = {2026},
  url = {https://creaturedata.com/animals/horse-botfly},
  note = {Data as of 2026-11-14}
}