Snow Crane Fly vs Window Gnat

Side-by-side species comparison

Attribute Snow Crane Fly Window Gnat
Scientific Name Chionea valga Sylvicola fenestralis
Order Diptera Diptera
Family Limoniidae Anisopodidae
Size 5-8 mm body length 5-7 mm
Habitat Caves Underground
Diet Fungus Feeders Sap Feeders
Regions Europe, Northern Asia Europe
Conservation Least Concern Least Concern

Snow Crane Fly

A wingless crane fly adapted to cold environments, found walking on snow surfaces in winter. It resembles a long-legged spider and is active only at or below freezing temperatures.

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Did You Know?

It is one of the few insects active in midwinter, crawling across snow to find mates when most other insects are dormant.

Window Gnat

A small, delicate fly with dark-spotted wings often found resting on windows and walls. Larvae develop in fermenting organic matter and tree sap runs.

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Did You Know?

Despite being one of the most commonly encountered flies on windows throughout Europe, this species remains largely unstudied and overlooked by entomologists.