Diptera.info :: Identification queries :: Diptera (adults)
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 Cylindromyia for ID, N Spain--> Cylindromyia brevicornis
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| Piluca_Alvarez |
Posted on 02-10-2011 20:44
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 Member Location: Madrid, Spain Posts: 2431 Joined: 06.11.10 |
I know these are impossible without genitalia but I would like to give a try to this one and see if it is possible to get a' cf.'  Taken in N Spain, Burgos, at the beginning of June. Thanks in advance!! Piluca_Alvarez attached the following image:  [173.03Kb] Edited by Piluca_Alvarez on 13-11-2011 21:55 |
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| Piluca_Alvarez |
Posted on 02-10-2011 20:45
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Member Location: Madrid, Spain Posts: 2431 Joined: 06.11.10 |
A lateral view.
Piluca_Alvarez attached the following image:  [153.97Kb] |
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| Piluca_Alvarez |
Posted on 02-10-2011 20:46
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Member Location: Madrid, Spain Posts: 2431 Joined: 06.11.10 |
A frontal view.
Piluca_Alvarez attached the following image:  [148.32Kb] |
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| ChrisR |
Posted on 02-10-2011 20:50
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 Administrator Location: Reading, England Posts: 7698 Joined: 12.07.04 |
Actually genitalia aren't used in Cylindromyia but you do have to examine the fly carefully so it might not be possible - one for Theo, I 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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| Piluca_Alvarez |
Posted on 02-10-2011 21:04
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Member Location: Madrid, Spain Posts: 2431 Joined: 06.11.10 |
Thanks a bunch, Chris!!  Anything that doesn't require genitalia is not impossible to me  There is hope with Cylindromyias then Let's wait for Theo, then. Anything beyond 'sp.' is success hehehehe! |
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| Piluca_Alvarez |
Posted on 11-11-2011 15:41
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Member Location: Madrid, Spain Posts: 2431 Joined: 06.11.10 |
Now that I have learnt a bit about Cylindromyia, I am 'almost' convinced that this might be Cylindromyia auriceps. I am adding a detailed picture (well, nearly, you cannot expect miracles with a compact, hehehehe) of the scutellum. I can see two lateral pair of bristles and no apical one. As I don't have complete keys of the Spanish Cylindromyia spp., here is a list of the species found in my country, just in case it helps. Cylindromyia (Calocyptera) intermedia Cylindromyia (Conopisoma) rufipes Cylindromyia (Cylindromyia) bicolor Cylindromyia (Cylindromyia) brassicaria Cylindromyia (Cylindromyia) brevicornis Cylindromyia (Cylindromyia) pilipes Cylindromyia (Cylindromyia) xylotina Cylindromyia (Dupuisia) crassa Cylindromyia (Exogaster) rufifrons Cylindromyia (Neocyptera) auriceps Cylindromyia (Neocyptera) interrupta Cylindromyia (Neocyptera) scapularis Cylindromyia (Ocypterula) pusilla Cylindromyia (Partheniella) aurora Cylindromyia (Plesiocyptera) rubida Not an easy task in Spain But difficult tasks are the enjoyable ones
Piluca_Alvarez attached the following image:  [124.96Kb] |
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| ChrisR |
Posted on 11-11-2011 16:38
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Administrator Location: Reading, England Posts: 7698 Joined: 12.07.04 |
If you told me that it was auriceps then I would believe you ... they do look like this and auriceps is, in my experience, by far the commonest Cylindromyia in southern Europe It doesn't rule out the other species 100% but auriceps would be my best guess, given what we can see
Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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| Piluca_Alvarez |
Posted on 12-11-2011 16:53
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Member Location: Madrid, Spain Posts: 2431 Joined: 06.11.10 |
Thanks a lot, Chris! Just the fact of being able to name it 'possible Cylindromyia cf. auriceps' is just so much better than Cylindromyia sp. . Particularly because it is clear that it isn't C. rufifrons, C. rufipes and C. bicolor, naming only the obvious ones Now, I am just waiting for a possible bucket of cold water from Theo if my suppositions are wrong  |
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| Zeegers |
Posted on 12-11-2011 18:45
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Member Location: Soest, NL Posts: 16391 Joined: 21.07.04 |
? auriceps ? So big with 3 scutellar bristles ? It is brevicornis, based on the short antenna and... amazingly good to see ! ... the strong setae at the hind margin of ventral site of tergite 2. Theo |
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| ChrisR |
Posted on 12-11-2011 18:58
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Administrator Location: Reading, England Posts: 7698 Joined: 12.07.04 |
Very interesting - I have only seen 1 brevicornis, from the French Pyrennes
Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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| Piluca_Alvarez |
Posted on 12-11-2011 20:18
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Member Location: Madrid, Spain Posts: 2431 Joined: 06.11.10 |
OMG! OMG! OMG! Thank you soooo much, Theo!! A very nice bucket of cold water indeed!! I am astonished that I only could see the lateral scutellar bristles  , but yes, I can see now the apical pair too! I thought the apical bristles would be stronger. That completely fooled me.Learning, learning... And thanks for the explanatios too!! |
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| Zeegers |
Posted on 13-11-2011 10:45
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Member Location: Soest, NL Posts: 16391 Joined: 21.07.04 |
Auriceps-group in a broad sense (so, including interrupta, intermedia, pusilla,... all the western small ones) lack the BASAL scutellar bristle. And that one is most prominent visible here. So it is not only about the number of bristles, but also about their location. The apical, indeed, are small and easily overlooked. Theo |
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| Piluca_Alvarez |
Posted on 13-11-2011 21:10
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Member Location: Madrid, Spain Posts: 2431 Joined: 06.11.10 |
Thanks a bunch again for all your explanations, Theo!! I see keys are necessary but sometimes it isn't enough. Nothing like experience with flies to get a proper ID I see there aren't pictures of Cylindromyia brevicornis in the gallery. You all will have mine Also found here: http://www.biodiversidadvirtual.org/insectarium/Cylindromyia-brevicornis-14-img294308.html http://www.biodiversidadvirtual.org/insectarium/Cylindromyia-brevicornis-24-img294311.html http://www.biodiversidadvirtual.org/insectarium/Cylindromyia-brevicornis-34-img294314.html http://www.biodiversidadvirtual.org/insectarium/Cylindromyia-brevicornis-44-img294316.html Edited by Piluca_Alvarez on 20-11-2011 21:13 |
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