Window Fly vs Giant Darner Dragonfly

Side-by-side species comparison

Attribute Window Fly Giant Darner Dragonfly
Scientific Name Scenopinus fenestralis Tetracanthagyna plagiata
Order Diptera Odonata
Family Scenopinidae Aeshnidae
Size 5-7 mm 100-115 mm body, 160 mm wingspan
Habitat Indoors Ponds & Lakes
Diet Predators Predators
Regions Worldwide Southeast Asia (Malaysia, Borneo, Sumatra, Thailand, Indonesia)
Conservation Least Concern Least Concern

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.

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Did You Know?

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

Giant Darner Dragonfly

One of the largest dragonflies in the world, with a wingspan exceeding 16 cm. The body is brown with green markings and the wings are tinted amber. It is a powerful crepuscular hunter.

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Did You Know?

It hunts at dusk and dawn when most dragonflies are inactive, using its enormous eyes optimized for low-light vision.