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Fall Fund Drive

Bird nest fly - Scenopinus

Bird nest fly - Scenopinus
Sunderland, Franklin County, Massachusetts, USA
May 30, 2012
Size: 9 mm
When I removed an old phoebe nest this spring, there were several larvae under it that looked like therevids, so I put the nest in a container. Two of these flies have now emerged, along with a dozen or so tineid moths.

Images of this individual: tag all
Bird nest fly - Scenopinus Bird nest fly - Scenopinus Bird nest fly - Scenopinus

Probably Scenopinus fenestralis
Probably Scenopinus fenestralis. The alternative is glabifrons. Both species were imported from Europe.

Moved from Scenopinus.

Moved from Flies.

Very nice pics!
Very nice pics! And the larvae have the same secondary segmentation as Therevidae. They are considered sister taxa...

I was wondering about Scenopinus, since I found this when I googled "Therevidae + bird nest." So evidently I haven't documented anything new here.

They love feeding on beetles
They love feeding on beetles larvae, and they feed on Museums-beetles (Dermestidae) which live of the dead insects in your house, and then the adults show up at the windows (hence the name).. some Scenopinidae larvae live in loose soil and sand dunes very much like Therevidae, and some others live in the tunnels of wood boring beetles and feed on the beetle larvae...

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