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Diptera.info :: Identification queries :: Diptera (adults)
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Muscoid fly ID please
Carnifex
#1 Print Post
Posted on 12-05-2019 00:04
Member

Location: Vienna, Austria
Posts: 609
Joined: 23.06.15

I am still struggling to differentiate Fanniidae from Muscidae. So what is this female? A Hydrotaea, a Fannia, s.th. else? Seen in a park in Vienna, mid of May

static.inaturalist.org/photos/38614317/original.jpeg

static.inaturalist.org/photos/38614339/large.jpeg

static.inaturalist.org/photos/38614366/large.jpeg
Cheers, Lorin

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All requests are from the urban area of Vienna, if not otherwise stated.

My Diptera observations (and other living forms) can be found here, and corrections or comments over there would also be appreciated.
 
John Carr
#2 Print Post
Posted on 12-05-2019 00:30
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Location: Massachusetts, USA
Posts: 6962
Joined: 22.10.10

Not a Hydrotaea. Fanniidae, almost all Anthomyiidae, and some Muscidae have 2+3 pairs of dorsocentrals. Most Muscidae have 2+4, including Hydrotaea.
 
http://www.flickr.com/photos/31715949@N00
Carnifex
#3 Print Post
Posted on 12-05-2019 00:33
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Location: Vienna, Austria
Posts: 609
Joined: 23.06.15

Thanks John, some helpful hints! I am usually looking for the anal veins, which are more often than not hard to see clearly.
Cheers, Lorin

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All requests are from the urban area of Vienna, if not otherwise stated.

My Diptera observations (and other living forms) can be found here, and corrections or comments over there would also be appreciated.
 
John Carr
#4 Print Post
Posted on 12-05-2019 01:27
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Location: Massachusetts, USA
Posts: 6962
Joined: 22.10.10

Also, the usually pale parafrontal strips of female Fannia are broadest in the middle, not parallel sided.
 
http://www.flickr.com/photos/31715949@N00
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Date and time
26 June 2019 16:31
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