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Diptera.info :: Family forums :: Asilidae Forum
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Asilidae to identify in Buenos Aires
Diego Rosa
#1 Print Post
Posted on 24-01-2019 20:06
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Location: Beccar, Buenos Aires, Argentina
Posts: 32
Joined: 01.07.17

Hi, I've found this creature in San Isidro, Buenos Aires. I'd like to identify it. At first sight, I thought it was a Blepharepium sp, but there are some significant differences, as the lack of a clear border in each abdominal segment

Regards

Diego A. Rosa
Diego Rosa attached the following image:


[122.75Kb]
Diego A. Rosa
 
diegoarosa.blogspot.com
Eric Fisher
#2 Print Post
Posted on 29-01-2019 23:10
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Location: California
Posts: 332
Joined: 19.05.06

From your photo, looks like Diogmites coffeatus; but I can't be certain, as I need more detail & angles. That sp. mimics dark vespidae and has similar coloration to this one.
 
Diego Rosa
#3 Print Post
Posted on 30-01-2019 13:35
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Location: Beccar, Buenos Aires, Argentina
Posts: 32
Joined: 01.07.17

Thanks, Eric for your reply. Yesterday I found it again in the same areas and I could take more pictures. Hope they are good enough to see more details.

https://drive.google.com/open?id=1GTLI-Kqt_s7-7OVcZ8khcObjHljhEjbV

https://drive.google.com/open?id=1_0SdfDMCkl-qU8zs6yYyiqkHNKS3u2mb

Regards

Diego Rosa
Diego A. Rosa
 
diegoarosa.blogspot.com
Chris Cohen
#4 Print Post
Posted on 15-02-2019 21:43
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This is something from the tribe Plesiommatini. The eyes diverging ventrally are a very good character for this tribe. Compare with http://www.hr-rna.com/RNA/Rfly%20pages/Plesiomma%20page.htm

I don't think Plesiommatini has been recorded from Argentina, but Cystoprosopa semirufa was described from Montevideo, Uruguay. I'll have to look into the literature to see if I can get some more info. Great find!
Edited by Chris Cohen on 15-02-2019 21:45
 
Eric Fisher
#5 Print Post
Posted on 17-02-2019 20:22
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Location: California
Posts: 332
Joined: 19.05.06

Yes, I now can see that this is a Plesiomma sp. I haven't been able to open the supplemental images that Diego sent (show view of face?) but after Chris mentioned this genus, the overall shape & impression now says "Plesiomma" to me also. Cystoprosopa is a closely related genus but has a 'fatter' head and shorter antennae than this fly.

Cheers, Eric
 
Chris Cohen
#6 Print Post
Posted on 18-02-2019 19:54
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Location:
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Joined: 15.02.19

Yeah, one of the additional images had a view of the face. I can't seem to attach or embed it, annoyingly.
Edited by Chris Cohen on 19-02-2019 01:44
 
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