Diptera.info :: Identification queries :: Diptera (adults)
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 Sarcophaga carnaria?
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| Muhammad Mahdi |
Posted on 09-01-2009 15:41
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 Member Location: Dar es Salaam, Tanzania Posts: 447 Joined: 26.12.08 |
Hi Is it a Sarcophaga carnaria? It was on a brick structure in Dar es Salaam. About 15mm long. Muhammad Mahdi attached the following image:  [40.51Kb] Muhammad ____________________ www.micro2macro.net |
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| ChrisR |
Posted on 09-01-2009 17:55
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 Administrator Location: Reading, England Posts: 7699 Joined: 12.07.04 |
It would be impossible to say for sure which species it was if it was a Sarcophaga because we'd usually need to see the male genitalia. However, this doesn't look like Sarcophaga to me if the genitalia on this really are red. |
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| Muhammad Mahdi |
Posted on 09-01-2009 18:06
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Member Location: Dar es Salaam, Tanzania Posts: 447 Joined: 26.12.08 |
The genitalia were red, sticking out like plums. See attached picture for the colour.
Muhammad Mahdi attached the following image:  [34.22Kb] Muhammad ____________________ www.micro2macro.net |
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| Tony Irwin |
Posted on 09-01-2009 19:05
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 Member Location: Norwich, England Posts: 7193 Joined: 19.11.04 |
S.carnaria has black genitalia, so it's not that species. It looks as though it might be in the subgenus Bercaea (very similar to Sarcophaga (Bercaea) africa, but the antennae are a different colour) - see http://www.dipter...to_id=2592
Tony ---------- Tony Irwin |
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| Xespok |
Posted on 09-01-2009 19:08
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 Member Location: Debrecen, Hungary Posts: 5550 Joined: 02.03.05 |
Sarcophaga sp male I think. But not Sarcophaga (Sarcophaga) carnaria. Sarcophaga (Sarcophaga) sp to my knowledge never have red genitalia. Check if Sarcophaga (Bercaea) africa is shown in the gallery, maybe it will be similar to this.
Gabor Keresztes Japan Wildlife Gallery Carpathian Basin Wildlife Gallery |
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| Muhammad Mahdi |
Posted on 09-01-2009 19:42
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Member Location: Dar es Salaam, Tanzania Posts: 447 Joined: 26.12.08 |
Tony, you are saying the fly is in the genus Sarcophaga and sub genus Bercaea? Xespok I didn;t quite get you. Can you please repeat  Thanks to everyone for helping  Muhammad ____________________ www.micro2macro.net |
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| Tony Irwin |
Posted on 09-01-2009 21:43
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Member Location: Norwich, England Posts: 7193 Joined: 19.11.04 |
Muhammad Mahdi wrote: Tony, you are saying the fly is in the genus Sarcophaga and sub genus Bercaea? Yes, that's right. I don't know what other species might be in your area, but I'm fairly certain that this is in Sarcophaga s.g. Bercaea Tony ---------- Tony Irwin |
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| Muhammad Mahdi |
Posted on 10-01-2009 08:25
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Member Location: Dar es Salaam, Tanzania Posts: 447 Joined: 26.12.08 |
Thanks. The image below was the best I got of its genitalia Muhammad Mahdi attached the following image:  [30.79Kb] Muhammad ____________________ www.micro2macro.net |
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| Xespok |
Posted on 10-01-2009 09:01
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Member Location: Debrecen, Hungary Posts: 5550 Joined: 02.03.05 |
You have to turn it out. When the fly is soft open the genitalia out with a needle.
Gabor Keresztes Japan Wildlife Gallery Carpathian Basin Wildlife Gallery |
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| Muhammad Mahdi |
Posted on 10-01-2009 09:08
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Member Location: Dar es Salaam, Tanzania Posts: 447 Joined: 26.12.08 |
I have to kill the fly?
Muhammad ____________________ www.micro2macro.net |
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| ChrisR |
Posted on 10-01-2009 10:39
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Administrator Location: Reading, England Posts: 7699 Joined: 12.07.04 |
Muhammad Mahdi wrote: I have to kill the fly? Yes ... that's one of the main reasons why people collect and kill insects - to examine parts that are not visible on photos The problem with a lot of sarcophagids (and many other Diptera) is that externally different species look identical. However, the internal parts of the male genitalia are very characteristic. What you see in the photo is the genital capsule - the hard parts that protect his "important" bits inside and it's those internal parts we need to see to be sure of an identification It doesn't mean you *have* to kill flies to study them. But it does mean that if you don't then you have to accept that you will have a lot of photos where you can only be sure of the genus or tribe ... or "it might be species X or species Y" etc. But if your curiosity grows and you have a project where you need to know (ie. if you are making a species list for a nature reserve etc.) then making a collection isn't difficult and will open up a huge and fascinating world of Diptera taxonomy and genuinely scientific research.
Edited by ChrisR on 10-01-2009 10:43 |
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| Muhammad Mahdi |
Posted on 10-01-2009 12:11
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Member Location: Dar es Salaam, Tanzania Posts: 447 Joined: 26.12.08 |
Thanks for the info. I think I am not ready yet, but maybe as you mention, sometime in the furture.
Muhammad ____________________ www.micro2macro.net |
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| Jan HC Velterop |
Posted on 23-10-2009 16:41
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Member Location: Enschede NL 7544 ZE 106 Posts: 56 Joined: 08.03.06 |
I cannot agree with S.(Bercaea). I would rather think of Sarcophaga (Engelisca) nodosa, which I found locally very numerous, although I did not catch them at the wall of the presidential palace. This one has strong marginal bristles on the red genital segment, as nodosa. S.(E.) nodosa shows also reddisch antennae as Tony correctly states.. Jan H.C.Velterop, Enschede. |
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but don't see the image in the post.