| Scenopinidae Temporal range:
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| Scenopinus fenestralis | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Diptera |
| Superfamily: | Asiloidea |
| Family: | Scenopinidae Fallén, 1817 |
| Synonyms | |
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The Scenopinidae or window flies are a small (about 400 described species)[1] family of flies (Diptera), distributed worldwide. In buildings, they are often taken at windows, hence the common name window flies.
The two species with cosmopolitan distributions are associated with the movement of trade goods (Scenopinus fenestralis and S. glabrifrons). Very little is known of the larval biology; larvae have been found associated with stored-grain pests, in nests of birds and rodents, in beetle larvae burrows in trees and shrubs, and in association with therevid larvae in soil. They may be predators of the larvae of other insects. Adults have sponging mouthparts and are found on open flowers.
- ^ Kelsey, L.P. (1969). "A revision of the Scenopinidae (Diptera) of the world". Bulletin of the United States National Museum. 277. Washington: Smithsonian Institution Press: 1–336. Retrieved 15 June 2018.