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Id please

 
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robinsects



Joined: 25 Aug 2008
Posts: 18

PostPosted: Thu Sep 25, 2008 1:31 pm    Post subject: Id please Reply with quote



Syrphini with moustache bands (male)
P9200395 syrphini dark

The Roughs
Yorkshire Bridge Common
Peak District
20-9-08

Bands on tergites 3 and 4 are very broad and start at the front of tergites and curve up strongly at the edges.

There appear to be two faint grey lines running longditudinally along the centre of the thorax, but these might be reflections.

A number of possibilites including

Epistrophe diaphana
Similar to Stubbs Plate 2 Fig 5.
This has grey lines on thorax.
But this is a southern species.

Eupeodes latifasciatus
Similar Stubbs Plate 2 Fig 13a
This species reportedly common in Sheffield and North Derbyshire

Eupeodes nitens
Similar Stubbs Plate 2 Fig 16b
But species of South and Central England

Your comments would be appreciated

Rob Foster


Last edited by robinsects on Sun Sep 28, 2008 1:11 am; edited 1 time in total
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robinsects



Joined: 25 Aug 2008
Posts: 18

PostPosted: Sun Sep 28, 2008 1:10 am    Post subject: Reply with quote

Timz501 ( UK and Irelands Hoverflies - Flickr) suggests

Didea fasciata (male)
P9200395 syrphini dark

The Roughs
Yorkshire Bridge Common
Peak District
20-9-08

Moustache bands on tergites 3 and 4 are very broad and start at the front of tergites and curve up strongly at the edges.

Dip in wing vein 4+5 and tergite 2 markings indicate Didia spp.
Markings on tergite 4 touching tergite front and tergite 5 has no yellow and face extensively yellow indicate D. fasciata.
(Id. by Timz501)

Similar to Stubbs Plate 3 Fig 15a.
According to Stubbs - recent records show it is widespread in England.
Late season presence consistent with third brood peaking in September

Rob
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conopid



Joined: 03 Sep 2005
Posts: 342
Location: Shrewsbury, Shropshire

PostPosted: Sun Sep 28, 2008 8:10 pm    Post subject: Reply with quote

Looks good for Didea, and most likely it is D fasciata.
_________________
Nigel Jones
Shrewsbury
Shropshire
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robinsects



Joined: 25 Aug 2008
Posts: 18

PostPosted: Mon Sep 29, 2008 1:26 am    Post subject: Reply with quote

Thanks Nigel
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Roger K.A. Morris



Joined: 06 Nov 2005
Posts: 1583

PostPosted: Mon Sep 29, 2008 9:32 pm    Post subject: Reply with quote

Caution - possibly D. faciata but there are no absolutes on separating D. intermedia

Regards

Roger
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robinsects



Joined: 25 Aug 2008
Posts: 18

PostPosted: Fri Oct 03, 2008 6:45 pm    Post subject: Reply with quote

Thanks Roger
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