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 Any ideas on this one ?
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| LordV |
Posted on 25-07-2006 16:46
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Member Location: Posts: 671 Joined: 06.09.05 |
Fly with a very long proboscis but doesn't look to me like a dancefly. Taken today South Coast UK body about 7mm long. Thanks Brian V.  |
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| Dmitry Gavryushin |
Posted on 25-07-2006 17:35
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 Member Location: Posts: 3303 Joined: 17.10.05 |
Hello Brian, Please compare with http://www.dipter...ad_id=2398 Edited by Dmitry Gavryushin on 25-07-2006 17:36 |
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| LordV |
Posted on 26-07-2006 06:59
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Member Location: Posts: 671 Joined: 06.09.05 |
Thanks Black, does look similar  Brian V. |
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| ChrisR |
Posted on 26-07-2006 09:27
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 Administrator Location: Posts: 7699 Joined: 12.07.04 |
noooooooooooo, no, no, no, no  Sorry, not Prosena siberita this time. This fly a tachinid but it is much smaller, no plumose arista and the proboscis is hinged - not straight. This looks like Siphona geniculata (or one of the other Siphona species - but they are very hard to split even with a specimen)  |
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| LordV |
Posted on 26-07-2006 11:26
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Member Location: Posts: 671 Joined: 06.09.05 |
Thanks Chris but just to show my complete ignorance what is/are plumose arista ?  Name seems very appropriate . Brian V. |
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| crex |
Posted on 26-07-2006 11:41
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 Member Location: Posts: 1996 Joined: 22.05.06 |
LordV wrote: ... what is/are plumose arista ? Arista in the glossary ... and I think plumose is feather-like. Edited by crex on 26-07-2006 11:45 |
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| ChrisR |
Posted on 26-07-2006 11:54
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Administrator Location: Posts: 7699 Joined: 12.07.04 |
crex is right ... the arista is a hair-like structure that points forward and down, emerging from the top of the 3rd antennal segment (usually the biggest bit). Plumose means 'plume or feather shaped'. Prosena has a very plumose arista, which is quite an unusual characteristic in the tachinids but Siphona have bare aristas. But the giveaway really is that Prosena has a long, rigid proboscis and Siphona has a proboscis bent into 3 clear sections |
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| LordV |
Posted on 26-07-2006 13:01
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Member Location: Posts: 671 Joined: 06.09.05 |
Thanks again - gradually learning Brian V. |
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