Diptera.info :: Identification queries :: Diptera (adults)
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 Tiny black fly
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| Susan R Walter |
Posted on 28-01-2007 22:55
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 Member Location: Touraine du Sud, central France Posts: 1802 Joined: 14.01.06 |
As ever, with tiny shiny black flies I think Lonchaeidae, but they never are. Also wondered about Aulacigastridae. 4mm, from 21 November 2006, east London cemetery park. Susan R Walter attached the following image:  [50.1Kb] Edited by Susan R Walter on 28-01-2007 22:57 Susan |
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| Susan R Walter |
Posted on 28-01-2007 22:55
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Member Location: Touraine du Sud, central France Posts: 1802 Joined: 14.01.06 |
Another view.
Susan R Walter attached the following image:  [54.32Kb] Susan |
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| Paul Beuk |
Posted on 29-01-2007 08:32
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 Super Administrator Location: Netherlands Posts: 19365 Joined: 11.05.04 |
This is an agromyzid...
Paul - - - - Paul Beuk on https://diptera.info |
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| Susan R Walter |
Posted on 29-01-2007 14:18
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Member Location: Touraine du Sud, central France Posts: 1802 Joined: 14.01.06 |
Ta Paul - I knew it wouldn't be anything like what was coming to my mind.
Susan |
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| Susan R Walter |
Posted on 29-01-2007 22:45
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Member Location: Touraine du Sud, central France Posts: 1802 Joined: 14.01.06 |
Paul How could you tell it was an Agromyzid from these images? I have gone back to the specimen and my key to British Families of Diptera (Unwin) and have noted: a) post-verticals long and divergent  3rd antennal segment roundedc) sub-costa merges with Vein 1 (completely missed that one first time round, and it's actually the most obvious of the characters on such a small dark fly  )d) lower orbitals incurved (damned hard to see the little blighters  - and certainly not from the photo)Without being able to see all 4 of these characters, how did you know? Susan |
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