Window Fly vs Common Clubtail

Side-by-side species comparison

Attribute Window Fly Common Clubtail
Scientific Name Scenopinus fenestralis Gomphus vulgatissimus
Order Diptera Odonata
Family Scenopinidae Gomphidae
Size 5-7 mm 50-55 mm wingspan
Habitat Indoors Rivers & Streams
Diet Predators Predators
Regions Worldwide Europe
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.

Common Clubtail

A medium-sized dragonfly with a club-shaped abdomen tip and distinctive yellow and black markings. It emerges en masse from rivers in late spring.

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Did You Know?

Unlike most dragonflies, clubtails frequently perch on the ground or on flat surfaces rather than hanging from vegetation.