Waterhouse Stag Beetle vs Glacier Black Fly

Side-by-side species comparison

Attribute Waterhouse Stag Beetle Glacier Black Fly
Scientific Name Phalacrognathus muelleri waterhouseorum Prosimulium alpestre
Order Coleoptera Diptera
Family Lucanidae Simuliidae
Size 25-65 mm 2-4 mm body length
Habitat Mountains Mountains
Diet Wood Feeders Blood Feeders
Regions New Guinea Alps, Northern Europe
Conservation Not Evaluated Least Concern

Waterhouse Stag Beetle

A subspecies of the rainbow stag beetle from New Guinea with even more vivid metallic coloring. Highly prized by collectors.

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Did You Know?

They display some of the most intense structural coloration found in any beetle species.

Glacier Black Fly

A small black fly whose larvae develop in fast-flowing alpine streams. Adults are among the earliest insects active after snowmelt.

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Did You Know?

Larvae anchor themselves to rocks in torrential currents using silk pads and tiny hooks.