Slender Robber Fly vs Deer Bot Fly

Side-by-side species comparison

Attribute Slender Robber Fly Deer Bot Fly
Scientific Name Leptogaster cylindrica Cephenemyia stimulator
Order Diptera Diptera
Family Asilidae Oestridae
Size 8-12 mm 12-15 mm
Habitat Meadows Woodlands
Diet Predators Parasites
Regions Europe, Western Asia Europe
Conservation Least Concern Least Concern

Slender Robber Fly

A delicate, narrow-bodied robber fly with an extremely slender abdomen. It hunts small insects among tall grass stems.

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Did You Know?

Its thread-like abdomen makes it almost invisible when resting on grass stems.

Deer Bot Fly

A parasitic fly that deposits larvae in the nostrils of roe deer. The larvae develop in the pharyngeal region before being sneezed out.

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Did You Know?

Once erroneously claimed to fly at over 1,300 km/h, making it a famous example of scientific exaggeration.