Striped Deer Fly vs Horse Fly

Side-by-side species comparison

Attribute Striped Deer Fly Horse Fly
Scientific Name Chrysops vittatus Tabanus bovinus
Order Diptera Diptera
Family Tabanidae Tabanidae
Size 8-11 mm 20-25 mm
Habitat Rivers & Streams Wetlands
Diet Blood Feeders Blood Feeders
Regions Eastern North America from Canada to the southern United States Europe, Asia
Conservation Least Concern Least Concern

Striped Deer Fly

A small deer fly with distinctive dark bands across its wings and bright green and gold patterned eyes. Females are persistent biters that circle the head and shoulders of hosts.

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Did You Know?

Its compound eyes display iridescent green and gold zigzag patterns that fade to dull gray shortly after the fly dies.

Horse Fly

A large, stout fly with huge iridescent compound eyes that display rainbow patterns. Only females bite, using scissor-like mouthparts to slash skin and lap up blood.

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Did You Know?

Horse fly eyes display stunning iridescent bands of color created by structural interference patterns, and scientists have used their anti-reflective eye structure to design better solar panels.