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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 2017-07-27 17:16:20

StevieG
DF Members
Name: Steve Garland
From: Lancaster
Registered: 2015-07-26
Posts: 26

Mystery Tipulid - Erioptera sp.

This small cranefly was collected on Winmarleigh Moss Nature Reserve, Lancashire (large lowland peat bog) on 31 May 2017.  The male genitalia don't really seem to fit with anything in the key.  I'm relatively new to craneflies, so am not sure of the orientation of the drawings in the key.  The upper part is long and slightly clubbed.  The lower has three 'teeth', two larger and one short.

I can take more images if required.


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Last edited by StevieG (2017-07-27 17:42:08)

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#2 2017-11-13 20:04:46

StevieG
DF Members
Name: Steve Garland
From: Lancaster
Registered: 2015-07-26
Posts: 26

Re: Mystery Tipulid - Erioptera sp.

After returning to this specimen and much deliberation and finding a useful genitalia photo of fuscipennis online I have concluded that this is a male Erioptera fusculenta.

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#3 2017-11-14 18:17:14

johnkramer
DF Members
Name: John Kramer
From: Oadby, Leicester
Registered: 2008-02-20
Posts: 235

Re: Mystery Tipulid - Erioptera sp.

Nearly there Steve.  It is Erioptera fuscipennis.  You can clearly see the second tiny thorn on the style,  which is diagnostic.  These 2 species are very similar in other respects.  I find that even the small yellow thoracic markings are difficult to differentiate.   [Check the ID on the website you used.  The internet isn't always right !!!]
John K

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#4 2017-11-24 21:01:53

StevieG
DF Members
Name: Steve Garland
From: Lancaster
Registered: 2015-07-26
Posts: 26

Re: Mystery Tipulid - Erioptera sp.

I don't know whether you are at the meeting in Liverpool tomorrow, but I'll bring it along on Sunday to get checked.  The photo looks like there is a second 'spine', but under the microscope it I can't see it, but it is very difficult.

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#5 2017-11-26 19:32:52

StevieG
DF Members
Name: Steve Garland
From: Lancaster
Registered: 2015-07-26
Posts: 26

Re: Mystery Tipulid - Erioptera sp.

Thanks - yes Alan Stubbs had a look at it and also said it was fuscipennis. I'll iRecord it now.

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