Diptera.info :: Identification queries :: Diptera (adults)
 Muscidae with big abdomen?
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| lynkos |
Posted on 27-09-2006 16:28
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Member Location: Rome, Italy Posts: 466 Joined: 20.06.05 |
This I tentatively classify as a Muscidae. Photographed this morning in a pinewood near Rome, Italy. About 4 mm long.  Thanks, Sarah. |
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| Nikita Vikhrev |
Posted on 27-09-2006 18:55
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 Member Location: Moscow, Russia Posts: 9491 Joined: 24.05.05 |
I had rather say Lauxaniidae. Nikita Nikita Vikhrev - Zool Museum of Moscow University |
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| Paul Beuk |
Posted on 27-09-2006 19:12
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 Super Administrator Location: Netherlands Posts: 19403 Joined: 11.05.04 |
Yes, Pseudolyciella sp.
Paul - - - - Paul Beuk on https://diptera.info |
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| lynkos |
Posted on 28-09-2006 06:13
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Member Location: Rome, Italy Posts: 466 Joined: 20.06.05 |
Thanks! Can anyone give me some "simple" guidelines on distinguishing a Lauxaniidae from a Muscidae? Sarah. |
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| Tony Irwin |
Posted on 29-09-2006 21:59
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 Member Location: Norwich, England Posts: 7318 Joined: 19.11.04 |
Hi Sarah "Simple" guidelines? Muscidae and the other calypterate families have a complete thoracic suture - a groove running across the thorax in front of the wing bases. Lauxaniidae and the other acalypterate families have vague grooves at the sides of the thorax, but they do not meet on top. Compare http://www.dipter...oto_id=619 to http://www.dipter...oto_id=609. Also look at the tibiae. Muscidae usually have lots of bristles on the tibiae. Lauxaniidae have very few. Tony ---------- Tony Irwin |
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| lynkos |
Posted on 30-09-2006 07:55
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Member Location: Rome, Italy Posts: 466 Joined: 20.06.05 |
That's great Tony! Just hope I'll be able to apply it in the field! Sarah. |
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| Tony Irwin |
Posted on 30-09-2006 08:45
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Member Location: Norwich, England Posts: 7318 Joined: 19.11.04 |
For live flies -  Muscidae will sit, then fly off or run and skip away quickly when you approach. Lauxaniidae will either fly off (usually to a nearby leaf) or will walk quite slowly - they often look as though they have little energy! Tony ---------- Tony Irwin |
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| lynkos |
Posted on 30-09-2006 10:28
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Member Location: Rome, Italy Posts: 466 Joined: 20.06.05 |
That's a great added piece of information. I notice very great differences in behaviour, but to be honest I'd never really thought of it as a help to identification. Sarah. |
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