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| 1 | 2 |  » Stats |
Members: 50,148
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Top Poster: glsammy (15,069)
| | Welcome to our newest member, pywacket4u | |  | | 
14-08-2009, 08:40 PM
|  | Wild Member | | Join Date: Aug 2008 Location: Suffolk
Posts: 212
| | | Re: Aphids ?
That last photo helps because it shows that the aphids are hairy.
Anyway, I may have got it. You will see from this photo that Periphyllus nymphs are hairy and they have segmented (or wrinkly) abdomens - Afficher le sujet - [Periphyllus sp.] Pucerons verts poilus Le Monde des Insectes - and towards the bottom of this page there is a very similar photo to those here.
As to why they haven't grown, this page says that in mid summer Periphyllus aphids go through a period of diapuse during the 1st instar - SpringerLink - Journal Article
I think the species is Periphyllus acericola
Last edited by jaguarondi; 14-08-2009 at 08:44 PM.
|
14-08-2009, 08:46 PM
|  | Knight Grand Cross of the Wild Empire | | Join Date: Jul 2007 Location: London
Posts: 11,830
| | | Re: Aphids ?
Well done, Jag - I think you've cracked it!   |
14-08-2009, 09:01 PM
| | Officer of the Wild Empire | | Join Date: May 2007
Posts: 986
| | | Re: Aphids ?
Well done Jag and thanks - all is explained
Brian v.
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Brian V. |
14-08-2009, 09:16 PM
|  | Commander of the Wild Empire | | Join Date: Dec 2008 Location: Gloucestershire
Posts: 2,757
| | | Re: Aphids ?
Well done for finding that explanation. It's been a fascinating study - there's always something new to learn from Nature. |
14-08-2009, 09:52 PM
|  | Member of the Wild Empire | | Join Date: Jun 2009 Location: Shropshire
Posts: 297
| | | Re: Aphids ?
Well Done jaguarondi......... nice bit of researching
Col
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Life is for the living......so live it! |
15-08-2009, 10:15 AM
| | Wild Member | | Join Date: Aug 2008 Location: Suffolk
Posts: 212
| | | Re: Aphids ?
Thanks all, but I'm puzzled now why Periphyllus species stop growing and prolong exposure to parasites / predators when other aphids are producing babies by the zillion. That's what the paper I linked to discusses, but it only shows the first page. | | | |
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