Rustic Longhorn vs Golden-tabbed Robber Fly

Side-by-side species comparison

Attribute Rustic Longhorn Golden-tabbed Robber Fly
Scientific Name Xylotrechus rusticus Choerades marginatus
Order Coleoptera Diptera
Family Cerambycidae Asilidae
Size 10-20 mm 15-22mm
Habitat Forests Forests
Diet Wood Feeders Predators
Regions Europe, Russia, Siberia, Japan, China Europe
Conservation Least Concern Least Concern

Rustic Longhorn

A grey-brown cerambycid with wavy pale transverse bands on the elytra, found across Eurasia in birch and poplar forests. It is a common borer of weakened and recently felled broadleaf trees. Adults are diurnal and fast-running.

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Did You Know?

Adults are remarkably fast runners and difficult to catch by hand, earning them the nickname 'sprinting longhorns' among collectors.

Golden-tabbed Robber Fly

A large bristly brown robber fly with golden hair tufts that ambushes prey from sunny perches on logs.

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Did You Know?

Sits motionless on sun-warmed logs waiting for insects to fly past, then launches with explosive speed to intercept.