Snail-killing Fly vs Violet Ground Beetle

Side-by-side species comparison

Attribute Snail-killing Fly Violet Ground Beetle
Scientific Name Tetanocera elata Carabus violaceus
Order Diptera Coleoptera
Family Sciomyzidae Carabidae
Size 7-10 mm 20-35mm
Habitat Wetlands Underground
Diet Predators Predators
Regions Europe, North America Europe
Conservation Least Concern Least Concern

Snail-killing Fly

A wetland fly whose larvae are specialized predators or parasitoids of land snails. It has been investigated as a biocontrol agent for pest snails.

💡

Did You Know?

Larvae enter the snail's shell and consume it alive over several days.

Violet Ground Beetle

A large black beetle with violet or purple margins on its elytra and thorax. It is nocturnal and hides under logs and stones during the day.

💡

Did You Know?

When threatened, it releases a foul-smelling liquid from its abdomen to deter predators.