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| 1 | 2 |  » Stats |
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| | Welcome to our newest member, pywacket4u | |  | 
27-10-2009, 08:15 PM
|  | Commander of the Wild Empire | | Join Date: Jan 2007 Location: South Northants
Posts: 3,289
| | | Yellow barkfly with speckled wings
Stony Stratford, Bucks. Old wooden fence beneath ash, willow and sycamore.
Size: 4.5mm
Despite the bright yellow head I would never have spotted this fellow (or lass) if it hadn't moved. It was extremely well camouflaged and seemed to disappear whenever it stopped moving.
I thought it would be a cinch to id on the NBRS website but......  .. So help with an id would be appreciated.  
Bruce  |
27-10-2009, 09:03 PM
|  | Knight Grand Cross of the Wild Empire | | Join Date: Jul 2007 Location: London
Posts: 11,830
| | | Re: Yellow barkfly with speckled wings
Evening Bruce, *Barkfly! Rubs hands together  *
It looks for all the Earth like a Loensia sp. Based on the dark-brown speckled wings.
Do you have a side-on shot? Dorsals work well with the Ectopsocus genera and the like, because they have wings held low to the ground and you get to see it best from up above. However, with these ones you really need a lateral because the wings are more upright. I can't see the venation enough to key it out, either.
Ideally, these Psocopterans need three angles if possible - top-down just in case, a side-on for examining wing venation and a head-on in case it needs ratios of facial features looking at.
Sorry I can't be of more help! It's a great photo, too.
Take care, Jason  EDIT: It's a male - they have the larger eyes!
Last edited by Jason Green; 27-10-2009 at 09:12 PM.
Reason: Addition of sexing note
|
27-10-2009, 09:51 PM
| | Officer of the Wild Empire | | Join Date: Oct 2007 Location: Nanjing, China
Posts: 907
| | | Re: Yellow barkfly with speckled wings
I reckon Loensia pearmani or variegata -needs the genitalia to separate them, though...  |
27-10-2009, 11:44 PM
| | Commander of the Wild Empire | | Join Date: Jan 2007 Location: South Northants
Posts: 3,289
| | | Re: Yellow barkfly with speckled wings
Jason and Joe - Thanks for your help with identification. I do have a slightly messy lateral pic (see below), however I failed to talk it into posing for a photo showing the bits needed for a firm id . 
Bruce |
27-10-2009, 11:57 PM
| | Knight Grand Cross of the Wild Empire | | Join Date: Jul 2007 Location: London
Posts: 11,830
| | | Re: Yellow barkfly with speckled wings
Thanks for the additional side-shot - though the patterning is obscuring the veins too much! ( ...nothing to do with photographic angles, just the density of patterning)
Dissection job on the genetalia I'm afraid 
Last edited by Jason Green; 28-10-2009 at 12:10 AM.
|
28-10-2009, 09:13 AM
| | Officer of the Wild Empire | | Join Date: Oct 2007 Location: Nanjing, China
Posts: 907
| | | Re: Yellow barkfly with speckled wings
You can apparently separate them on the basis of precise wing length, if you can get a measurement? It's pretty subtle, though: 3.8 mm or 3.3-3.7 mm! |
28-10-2009, 09:18 AM
| | Knight Grand Cross of the Wild Empire | | Join Date: Jul 2007 Location: London
Posts: 11,830
| | | Re: Yellow barkfly with speckled wings
Quote:
Originally Posted by Acutipuerilis  You can apparently separate them on the basis of precise wing length, if you can get a measurement? It's pretty subtle, though: 3.8 mm or 3.3-3.7 mm! | Ah... thanks Joe! I suppose that's from the RES handbook too? |
28-10-2009, 09:30 AM
| | Officer of the Wild Empire | | Join Date: Oct 2007 Location: Nanjing, China
Posts: 907
| | | Re: Yellow barkfly with speckled wings
It is indeed - you're going to hve to get a copy, you know, given your interest in these. | | |
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