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Obviously it's some kind of fly, but can someone tell me which kind? And what is that bubble? An egg of some sort? Is he eating it? A blown out throat like on a hummingbird?
Spotted on Jun 4, 2011
Submitted on Jun 9, 2011
4 Comments
On closer investigation, it looks like it is sort of common for some flies to "blow bubbles", it seems that they expel a droplet of liquid, and then suck it back in again. No one seems to know for certain why.
Here's a photo of a blow fly drinking a droplet of water: https://secure.flickr.com/photos/bareego...
Definitely not a horse fly, probably either a blow fly or muscid. Not sure what's going on with the bubble though... they drink by lapping with their tongues.
Horsefly