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The Society for the study of flies (Diptera)

Affiliated to the British Entomological and Natural History Society (BENHS)

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#1 2018-11-07 18:10:22

Alan Outen
DF Members
Name: Alan Outen
Registered: 2010-06-24
Posts: 847

a smart little synanthropic fly from London Zoo

On a visit to London Zoo on 2 Nov 18 my friend Stephen Plummer and I spent some time looking for synanthropic species. Several individuals of this attractive little fly species were visiting a selection of fruit in the butterly house. I wonder if anyone could possibly suggest an identification. I do have the specimen. It was just slightly smaller than the Drosophila immigrans individuals which were numerous there.

Many thanks

Alan


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Last edited by Alan Outen (2018-11-07 18:59:48)

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#2 2018-11-07 20:23:00

Tony Irwin
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Name: Tony Irwin
From: Norwich
Registered: 2008-03-01
Posts: 762

Re: a smart little synanthropic fly from London Zoo

Looks rather like Elachiptera bimaculata, but needs careful examination to exclude E. austriaca. Good that you have a specimen!
(Not sure that bimaculata has been recorded from Britain before - best to check with John and Barbara Ismay.)

Last edited by Tony Irwin (2018-11-07 20:39:03)

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#3 2018-11-07 20:41:18

Alan Outen
DF Members
Name: Alan Outen
Registered: 2010-06-24
Posts: 847

Re: a smart little synanthropic fly from London Zoo

Many thanks again Tony

Alan

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#4 2018-11-08 01:05:10

schultmay
DF Members
Name: Barbara Ismay
Registered: 2008-02-14
Posts: 132

Re: a smart little synanthropic fly from London Zoo

Hi Alan,
I agree with Tony that this is almost certainly Elachiptera bimaculata, but I would like to dissect the specimen if it is a male to be quite certain. Barbara and I can see two orbital setae, which indicates bimaculata, whereas austriaca usually has one. The terminalia a quite distinct. I have bimaculata to add to the British list from East London and Kent, with Jeremy Richardson (Jeremy, if you see this message, could you please send us an email as I am not sure that we have the correct email address for you?).
Would it be possible that you, Alan, could bring the specimen to the AGM on Saturday / Sunday?
Best wishes,
John

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#5 2018-11-09 01:52:52

Alan Outen
DF Members
Name: Alan Outen
Registered: 2010-06-24
Posts: 847

Re: a smart little synanthropic fly from London Zoo

Hello John and Barabra

Many thanks for this and apologies for the delay in my reply. I have been trying to ascertain whether I can get a lift on Saturday. This is now sorted to I will be there and will bring the flies. I look forward to seeing you both (and others) again.

Alan

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