Horse Stomach Bot Fly vs Painted Bee Fly

Side-by-side species comparison

Attribute Horse Stomach Bot Fly Painted Bee Fly
Scientific Name Gasterophilus intestinalis Hemipenthes morio
Order Diptera Diptera
Family Oestridae Bombyliidae
Size 12-16 mm 7-12 mm
Habitat Farmland Deserts & Drylands
Diet Omnivores Parasitoids
Regions Cosmopolitan wherever horses are kept Europe, Asia, North Africa
Conservation Least Concern Least Concern

Horse Stomach Bot Fly

A bee-like fly that glues eggs to horse leg hairs where they are ingested during grooming. Larvae attach to the stomach lining and develop for months before passing out.

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Did You Know?

Larvae survive the acidic horse stomach by secreting a protective alkaline buffer around themselves.

Painted Bee Fly

A dark-bodied bee fly with characteristic half-blackened wings that give it a distinctive silhouette. It is commonly seen sunbathing on bare patches of ground in warm habitats.

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Did You Know?

It is a hyperparasitoid, meaning its larvae parasitize the parasites of other insects.