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 Tachinidae head??
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| jorgemotalmeida |
Posted on 26-11-2006 21:33
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 Member Location: Posts: 9295 Joined: 05.06.06 |
HI * locality - Silgueiros - Viseu - PORTUGAL * date - 26.11.2006 * size - 7 mm (medium fly) * habitat - open land * substrate - granite/lichen Tachinidae fly? Orbital bristles crossed... thank you!  to see it bigger (very recommended) go here: http://www.flickr...eam&size=l |
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| Tony Irwin |
Posted on 26-11-2006 22:18
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 Member Location: Posts: 7168 Joined: 19.11.04 |
Mmmm .. it has a muscid jizz. Lovely photo! 
Tony ---------- Tony Irwin |
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| Zeegers |
Posted on 27-11-2006 09:45
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Member Location: Posts: 18446 Joined: 21.07.04 |
I agree with Tony, lovely photo, though no Tachinid Theo |
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| jorgemotalmeida |
Posted on 29-11-2006 11:32
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Member Location: Posts: 9295 Joined: 05.06.06 |
here is another photo I took to the same fly. with "bubblegum" (yes, I read about this in this forum - with lord v photos!) |
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| jorgemotalmeida |
Posted on 14-12-2006 02:29
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Member Location: Posts: 9295 Joined: 05.06.06 |
Musca cf. autumnalis? right? ... |
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| bioimages |
Posted on 14-12-2006 12:32
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Member Location: Posts: 71 Joined: 25.11.06 |
Think I've worked out what's going on when flies blow bubbles (actually droplets rather than bubbles.) The labellum of the fly's proboscis sucks up liqud food thru numerous fine tubes. From time to time these tubes must get blocked. To clear blockages the fly reverses the flow and blows a droplet which is then sucked back in. Seem to remember from animal physiology lectures many years ago that fish use a similar "reverse thrust" to clear their gills. Apologies if this is old news! Malcolm Storey |
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| jorgemotalmeida |
Posted on 14-12-2006 17:17
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Member Location: Posts: 9295 Joined: 05.06.06 |
there are other hypothesis that were talked here in diptera.info -. It seems there is no consense about this issue... I think, for example, that cleaning could be made by other ways... perhaps blowing air... I wonder what is the real composition of that droplet?... (general composition) |
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but don't see the image in the post.
