Diptera.info :: Identification queries :: Diptera (adults)
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 Tachinidae, Dexiini
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| Tony T |
Posted on 28-08-2007 20:43
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 Member Location: New Brunswick, Canada Posts: 663 Joined: 08.02.07 |
28 August 2007, New Brunswick, Canada. Length: 9mm Striped thorax = Sarcophagidae ? Tony T attached the following image:  [82.27Kb] Edited by Tony T on 29-08-2007 20:44 |
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| jorgemotalmeida |
Posted on 28-08-2007 20:53
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 Member Location: Viseu - PORTUGAL Posts: 9295 Joined: 05.06.06 |
red traffic eyes. >> Sarcophagidae.  |
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| Zeegers |
Posted on 28-08-2007 20:59
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Member Location: Soest, NL Posts: 18822 Joined: 21.07.04 |
That works even in the New World ! Good to see Theo |
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| Tony T |
Posted on 29-08-2007 04:44
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Member Location: New Brunswick, Canada Posts: 663 Joined: 08.02.07 |
Thanks Jorge and Theo. Spent the entire morning and early pm "in the field" and managed only to get photos of this fly and a syrphid; very few flies active despite great weather - tabanids the most common. |
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| Liekele Sijstermans |
Posted on 29-08-2007 09:49
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Member Location: Geldermalsen Netherlands Posts: 305 Joined: 16.04.05 |
Accept traffic lights I see a clearly swollen subscutellum. In the Neotropics exists a Sarcophagide (Lepidodexia woodorum) with a moderate subscutellum. But this not Lepidodexia. So this is a picture of a Tachinide. I guess it is a Dexine like Billaea. But I have little experience with nearctic Tachinids. Liekele |
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| jorgemotalmeida |
Posted on 29-08-2007 11:56
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Member Location: Viseu - PORTUGAL Posts: 9295 Joined: 05.06.06 |
 if it is really a Tachinidae, this clearly cheated very well. another pitfall. great similarity.. this shows that Tachinidae and Sarcophagidae must be in the same superfamily. So, red traffic eyes with this appearance of body.. can meaning to be NOT a Sarcophagidae! Even Sarcophagidae like some Calliphoridae can have subscutellum! To complicate more the things.  |
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| Zeegers |
Posted on 29-08-2007 13:19
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Member Location: Soest, NL Posts: 18822 Joined: 21.07.04 |
Interesting observation by Liekele. He might be correct, however, it's difficult to see. So is it possible to check this specimen on the postscutellum, to be really sure ? Theo |
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| Tony T |
Posted on 29-08-2007 18:15
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Member Location: New Brunswick, Canada Posts: 663 Joined: 08.02.07 |
Zeegers wrote: Interesting observation by Liekele. He might be correct, however, it's difficult to see. So is it possible to check this specimen on the postscutellum, to be really sure ? Theo Fortunately I collected the specimen. It is confusing: red eyes, racing stripes on thorax, plumose antennae, decent-sized postscutellum, red bum. Tony T attached the following image:  [89.49Kb] |
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| Zeegers |
Posted on 29-08-2007 19:36
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Member Location: Soest, NL Posts: 18822 Joined: 21.07.04 |
The postscutellum is below the scutellum, so we can't see it unfortunately in the last pic. But the lateral headshot settles the matter instantly: it's 100 % Dexiini (and therefore Tachinidae) ans thus Liekele is completey right. Which illustrate that my rule 'New World is different from Old World' dominates over 'Red eyes imply Sarcophagidae'. Excellent observation, Liekele Theo |
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| Zeegers |
Posted on 29-08-2007 19:41
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Member Location: Soest, NL Posts: 18822 Joined: 21.07.04 |
So please change the title in 'Tachinidae !' Theo |
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| Tony T |
Posted on 29-08-2007 20:42
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Member Location: New Brunswick, Canada Posts: 663 Joined: 08.02.07 |
Zeegers wrote: The postscutellum is below the scutellum, so we can't see it unfortunately in the last pic. Theo I'm totally confused. What is the bulge, beneath the scutellum and above the whitish haltere knob, clearly seen in the last pic?  |
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| pierred |
Posted on 29-08-2007 20:47
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 Member Location: Paris (France) Posts: 1437 Joined: 21.04.05 |
Hello, Tony T wrote:I'm totally confused. You too? Pierre Duhem |
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| jorgemotalmeida |
Posted on 29-08-2007 20:58
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Member Location: Viseu - PORTUGAL Posts: 9295 Joined: 05.06.06 |
see here I THINK this is the correct... not sure, though. 1 - subscutellum 2 - postscutellum 3 - scutellum 4 - halter (vestigial wing) Please, correct me if I got it wrong!
jorgemotalmeida attached the following image:  [83.56Kb] Edited by jorgemotalmeida on 29-08-2007 21:13 |
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| jorgemotalmeida |
Posted on 29-08-2007 21:36
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Member Location: Viseu - PORTUGAL Posts: 9295 Joined: 05.06.06 |
ANOTHER SCHEME... If you disagree with something, let me know! 1 - anepisternum 2 - anterior spiracle 3 - scutum 4 - katepisternum 5 - meron 6 - sternites I, II, III, IV (in final of IV terminalia... and genitalia) 7 - tergites I, II, III, IV 8 - anepimeron 9 - proepimeron ? 10 - posterior spiracle the green zone without number can be the LATEROTERGITE? more..? jorgemotalmeida attached the following image:  [147.22Kb] Edited by jorgemotalmeida on 30-08-2007 00:19 |
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| Tony T |
Posted on 29-08-2007 23:42
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Member Location: New Brunswick, Canada Posts: 663 Joined: 08.02.07 |
Tony T wrote: I'm totally confused. What is the bulge, beneath the scutellum and above the whitish haltere knob, clearly seen in the last pic? Wow, that's quite a paint job. All I wondered about was the bit beneath the scutellum  Your effort may be wasted here. I could send you large images of the head, of the thorax, and of the abdomen. These could be coloured and labelled and placed in the Glossary, under the Category Morphology-head, Morphology-thorax, Morphology-Abdomen; with subheadings indicating the fly is a Tachinid. I will need your e-mail address to send them. What do you think? |
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| jorgemotalmeida |
Posted on 29-08-2007 23:54
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Member Location: Viseu - PORTUGAL Posts: 9295 Joined: 05.06.06 |
Tony T wrote: Tony T wrote: I'm totally confused. What is the bulge, beneath the scutellum and above the whitish haltere knob, clearly seen in the last pic? Wow, that's quite a paint job. All I wondered about was the bit beneath the scutellum Your effort may be wasted here. I could send you large images of the head, of the thorax, and of the abdomen. These could be coloured and labelled and placed in the Glossary, under the Category Morphology-head, Morphology-thorax, Morphology-Abdomen; with subheadings indicating the fly is a Tachinid. I will need your e-mail address to send them. What do you think? I still have no sure about the legend.  I think the knowledge has much more power when information is shared! Of course, without maleficent ends. It was a pleasure to do the paintings. IT was really a pleasure, believe. Yes, I agree entirely with your idea. My email is from gmail account and user is jorgemotalmeida You can see my email in EMAIL button -- http://www.dipter...lookup=320 . OT: It was a pleasure to photograph today this fabulous animal: http://www.flickr...811&size=l
Edited by jorgemotalmeida on 29-08-2007 23:57 |
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| Susan R Walter |
Posted on 30-08-2007 07:30
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 Member Location: Touraine du Sud, central France Posts: 1802 Joined: 14.01.06 |
Go Jorge and Tony T!  This would be a real asset to the website.
Susan |
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| Zeegers |
Posted on 30-08-2007 07:41
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Member Location: Soest, NL Posts: 18822 Joined: 21.07.04 |
I misinterpreted the picture, only looked at the magnification and therefore missed the context of the larger picture. 2 is indeed the postscutellum. Which settles its ID as Tachinidae - Dexiini, as far as there was some doubts left. Theo |
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| jorgemotalmeida |
Posted on 30-08-2007 10:53
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Member Location: Viseu - PORTUGAL Posts: 9295 Joined: 05.06.06 |
thanks to all. I assume that my legend has no errors. |
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| Kahis |
Posted on 30-08-2007 11:00
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 Member Location: Helsinki, Finland Posts: 1999 Joined: 02.09.04 |
That's a pretty good way to illustrate the various body parts! Well done.  I'll have to do something similar for our little project.
Kahis |
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