Bristly Tachinid Fly vs Bot Fly

Side-by-side species comparison

Attribute Bristly Tachinid Fly Bot Fly
Scientific Name Nowickia ferox Dermatobia hominis
Order Diptera Diptera
Family Tachinidae Oestridae
Size 12-16 mm 12-18 mm
Habitat Underground Forests
Diet Nectar Feeders Parasites
Regions Europe, Asia Central America, South America
Conservation Least Concern Least Concern

Bristly Tachinid Fly

A large, heavily bristled tachinid fly with a gray-checkered pattern on the abdomen. It is conspicuously spiny and frequently visits flowers in late summer.

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Did You Know?

Its exceptionally long and stiff bristles are thought to help prevent birds from swallowing it.

Bot Fly

Parasitic fly whose larvae develop under the skin of mammals including humans. Female captures a mosquito and glues eggs to it — when the mosquito bites, body heat triggers egg hatching.

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Did You Know?

The human bot fly is so devious it hijacks mosquitoes — it catches them, glues eggs to their bodies, then the eggs hatch when the mosquito lands on warm skin.