Golden Ground Beetle vs Window Fly

Side-by-side species comparison

Attribute Golden Ground Beetle Window Fly
Scientific Name Carabus auratus Scenopinus fenestralis
Order Coleoptera Diptera
Family Carabidae Scenopinidae
Size 20-30 mm 5-7 mm
Habitat Farmland Indoors
Diet Predators Predators
Regions Western Europe Worldwide
Conservation Least Concern Least Concern

Golden Ground Beetle

A large, brilliant metallic green or golden ground beetle with ridged elytra. It is a voracious predator of slugs and caterpillars.

💡

Did You Know?

French farmers historically valued it so highly that killing one was considered bad luck.

Window Fly

A small shiny black fly often found on windowsills inside buildings. Its larvae are beneficial predators of carpet beetle and clothes moth larvae.

💡

Did You Know?

Despite being found indoors, it is actually beneficial because its larvae eat destructive carpet beetles.