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#1 2009-03-08 19:10:45

PeterB
DF Members
Name: Peter Bolson
From: North Cumbria
Registered: 2008-08-22
Posts: 90

Scathophagidae ID

I've been practising using Stuart's brilliant key and wondered whether this was another Scathophaga furcata.
Unfortunately ( for me at least ) it escaped before I could get it under the microscope. I had thought it was dead !
Thanks


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#2 2009-03-09 11:46:21

Howard Bentley
Committee
Name: Howard Bentley
Registered: 2008-07-07
Posts: 795

Re: Scathophagidae ID

Not S. furcata, I think. No dark area on the front femora. Sorry I can't be more specific.

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#3 2009-03-09 20:55:35

Stephane Lebrun
Registered user
Name: Stephane Lebrun
From: Le Havre, FRANCE
Registered: 2008-04-05
Posts: 604

Re: Scathophagidae ID

For me, it is simply Scathophaga stercoraria (entirely black antennae).

Stephane.

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#4 2009-03-10 01:07:16

PeterB
DF Members
Name: Peter Bolson
From: North Cumbria
Registered: 2008-08-22
Posts: 90

Re: Scathophagidae ID

Thanks Stephane
I didn't know about the significance of the black antennae. I was misled by the fly's greenish colour & by thinking I could tell from a photo whether the aristae were hairy or not. Having subsequently recaught the fly I have been able to see the long hairs under the microscope.
So all in all another very useful learning exercise.
Peter

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#5 2009-03-13 19:22:10

batlab
Registered user
Name: Array Array
Registered: 2009-03-07
Posts: 9

Re: Scathophagidae ID

I would say female Scathophaga stercoraria. It is less golden-haired than the male, and has black antennae. S. furcata has reddish/orange antennae.
batlab

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#6 2009-03-14 12:07:18

Howard Bentley
Committee
Name: Howard Bentley
Registered: 2008-07-07
Posts: 795

Re: Scathophagidae ID

Agreed. S. stercoraria is very variable in both size and colour. Incidentally, take care about getting them into your pooter - they are voraciously predatory and you're likely to arrive home with smaller flies reduced to unidentifiable scraps!
Howard.

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#7 2009-03-15 00:37:39

KenMerrifield
Administrator
Name: Ken Merrifield
Registered: 2008-02-21
Posts: 279

Re: Scathophagidae ID

Howard Bentley wrote:

... take care about getting them into your pooter -

If I am right in thinking the English name of this species is "Common Yellow Dungfly" there may be a clue in the name as to another reason for not wanting it in your pooter      hmm

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#8 2009-03-15 14:38:18

batlab
Registered user
Name: Array Array
Registered: 2009-03-07
Posts: 9

Re: Scathophagidae ID

Also I have plenty of unidentifiable scraps in bat droppings.
batlab

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