Brown-tail Moth vs Tundra Robber Fly

Side-by-side species comparison

Attribute Brown-tail Moth Tundra Robber Fly
Scientific Name Euproctis chrysorrhoea Rhadiurgus variabilis
Order Lepidoptera Diptera
Family Erebidae Asilidae
Size 36-42 mm wingspan 10-15 mm
Habitat Beaches & Coastal Beaches & Coastal
Diet Fruit Feeders Herbivores
Regions Europe, western Asia (introduced to North America) Scandinavia, Finland, Scotland, northern Russia
Conservation Least Concern Least Concern

Brown-tail Moth

A white moth with a conspicuous brown tuft of hairs at the tip of its abdomen, used to cover its eggs. The caterpillar's hairs are highly irritating and can cause widespread rashes.

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Did You Know?

Shed caterpillar hairs can become airborne and cause respiratory distress in people kilometres from the colony.

Tundra Robber Fly

A medium-sized robber fly with a dark body and distinctive bristly face. It is an aerial predator that ambushes other flying insects from perches on rocks and low vegetation. Adults have powerful grasping legs.

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Did You Know?

This robber fly catches prey in midair and injects digestive enzymes to liquefy the insect's insides before drinking them.