Diptera.info :: Identification queries :: Diptera (adults)
 Tachinidae
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| neprisikiski |
Posted on 28-04-2011 20:46
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Member Location: Lithuania Posts: 876 Joined: 23.02.09 |
Hello, I want to ask about distinguishing characters between two very similar species of Peribaea - apicalis and longirostris. I have one season yield of nearly 500 specimens that could be identified as longirostris, but following Andersen it mostly recorded from Italy and should be very rare, so variability of apicalis? Thanks for your help.
neprisikiski attached the following image:  [130.96Kb] Edited by neprisikiski on 28-04-2011 20:54 Erikas |
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| neprisikiski |
Posted on 28-04-2011 20:47
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Member Location: Lithuania Posts: 876 Joined: 23.02.09 |
Abdominal tergites with conspicuous yellow bands along hind margins.
neprisikiski attached the following image:  [190.24Kb] Erikas |
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| ChrisR |
Posted on 28-04-2011 20:57
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 Super Administrator Location: Reading, England Posts: 7706 Joined: 12.07.04 |
I have one season yield of nearly 500 specimens  ... 500 specimens in a year?! I haven't even seen one here! 
Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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| neprisikiski |
Posted on 28-04-2011 21:08
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Member Location: Lithuania Posts: 876 Joined: 23.02.09 |
Chris, we know your situation there in the west... If it is really Peribaea longirostris, than I haven't seen P. apicalis, what is rather strange!
Erikas |
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| ChrisR |
Posted on 28-04-2011 22:40
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Super Administrator Location: Reading, England Posts: 7706 Joined: 12.07.04 |
Just looked at Andersen (1996) ... is P.apicalis a synonym of anything there or is it an addition since his keys? 
Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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| neprisikiski |
Posted on 28-04-2011 22:46
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Member Location: Lithuania Posts: 876 Joined: 23.02.09 |
A synonym of Peribaea minuta..
Erikas |
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| ChrisR |
Posted on 28-04-2011 23:07
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Super Administrator Location: Reading, England Posts: 7706 Joined: 12.07.04 |
Hmm, I see what you mean ... everything points to P.longirostris from the photos. I wonder though, as P.longirostris was a sp.nov. in 1996 ... how many of the P.apicalis records are prior to that and should be revised in light of the split? It could be that P.longirostris is far commoner and wider distributed than we think.
Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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| Zeegers |
Posted on 29-04-2011 08:06
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Member Location: Soest, NL Posts: 19310 Joined: 21.07.04 |
need to really check this, but first impression is very OK. It is my impression that longirostris is / might be the most northern of the three apicalis / tibialis / longirostris. InNL, it is found (but very rarely) in Calluna heath We could make a nice trade of Peribaea material Theo |
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| ChrisR |
Posted on 29-04-2011 09:19
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Super Administrator Location: Reading, England Posts: 7706 Joined: 12.07.04 |
Just checked my Peribaea "holdings" (sounds very grand) but I have just: 1x real P.apicalis from Russia (I double-checked it now - caught by a chap we all know - Nikita Vikhrev ); 1x P.discicornis from Portugal; 1x P.setinervis from England; and a lot of P.tibialis from Portugal and Spain ... hmm, I wonder who might have caught those Portuguese specimens?  I don't know whether this adds much to the distributional information though I just wonder how many pre-1996 records for apicalis have been double-checked to eliminate longirostris? Edited by ChrisR on 29-04-2011 09:23 Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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