Diptera.info :: Identification queries :: Diptera (adults)
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 All Sphaeroceridae?
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| Juergen Peters |
Posted on 29-11-2006 05:19
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 Member Location: northwest Germany Posts: 13910 Joined: 11.09.04 |
Hello! I am pretty sure (having learned it here in the forum  ) that the first fly below (2.5 mm, yesterday night, Ostwestfalen/Germany) belongs to the Sphaeroceridae. But what about the slightly larger (3-3.5 mm) and more slender fly on pics 2 and 3? Although its wings are broken, it seems to be clear that the venation is different.  
Best regards, Jürgen -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Juergen Peters Borgholzhausen, Germany WWW: http://insektenfo... -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= |
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| Paul Beuk |
Posted on 29-11-2006 08:11
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 Super Administrator Location: Netherlands Posts: 19363 Joined: 11.05.04 |
The bottom two are Phoridae.
Paul - - - - Paul Beuk on https://diptera.info |
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| crex |
Posted on 29-11-2006 08:24
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 Member Location: Sweden Posts: 1996 Joined: 22.05.06 |
Very long arista on the first one, or is that an illusion? |
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| Tony Irwin |
Posted on 29-11-2006 09:58
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 Member Location: Norwich, England Posts: 7232 Joined: 19.11.04 |
No illusion. A long arista is a characteristic of many sphaerocerids (and quite a few phorids too). The two families often look alike, presumably through evolving similar features to cope with similar lifestyles (burrowing and tunnelling in the dark).
Tony ---------- Tony Irwin |
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| Robert Nash |
Posted on 29-11-2006 13:31
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Member Location: Ulster Museum, Belfast, Ireland Posts: 288 Joined: 11.11.05 |
In almost all Sphaeroceridae the basal (metatarsal) joint of the hind leg is swollen. This can't be seen on your pic but the 2 Phoridae do not have this character. The long legs are for fast running hence the term Scuttle fly>Glossary for a link. Robert |
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| Juergen Peters |
Posted on 29-11-2006 20:59
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Member Location: northwest Germany Posts: 13910 Joined: 11.09.04 |
Hello, all! Thanks a lot for your explanations! Some days ago I had some "Phoridae" here, which turned out to be Sphaeroceridae. Therefore I was stuck on that family. Now the new one turns out to be Phoridae  . Thanks to you I now know where to look for the differences :-).
Best regards, Jürgen -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Juergen Peters Borgholzhausen, Germany WWW: http://insektenfo... -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= |
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| Ben Hamers |
Posted on 29-11-2006 22:01
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Member Location: Heerlen ( Holland ) Posts: 737 Joined: 16.12.04 |
Is it safe to separate living animals by the colour of the eyes (Phoridae blackish, Spaeroceridae reddish) ? Ben |
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