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Post by timmsyrj on Feb 15, 2015 8:49:40 GMT
"Here you have the parents along with the hybrid" two males produced that!! Interesting.
Only kidding, I get what you mean, nice spot, has anyone actually tried to do this as a breeding experiment.
Rich
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Post by wollastoni on Feb 15, 2015 13:02:57 GMT
Another splendid and rare ab. striata of Polyommatus bellargus.
From my friend Giuseppe Vignali's collection.
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Post by xavm (Xavier) on Feb 21, 2015 18:03:35 GMT
"Here you have the parents along with the hybrid" two males produced that!! Interesting. Only kidding, I get what you mean, nice spot, has anyone actually tried to do this as a breeding experiment. Rich
Of course Rich there were not the true parents
One very famous entomologist Klaus Schurian tried several times as well as Yvan (Cormion on the forum), however both failed. The hybridization appears to follow a complex scheme of sperm competition.
Cheers, Xavier
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Post by timmsyrj on Feb 21, 2015 18:22:26 GMT
Thanks for that info Xavier, interesting no ones managed it especially when other naturally occurring hybrids have been produced in captivity, i.e allotei and nandina for two, obviously it's more in-depth with these, I suppose hand pairing these little things would be extremely difficult so leaving it to the individuals to get on with it would be the way?
Rich
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Post by wollastoni on Feb 21, 2015 18:35:31 GMT
Personally I am happy that nobody achieved to industrialize cormion and polonus hybrids like O. allotei.
Both cormion and polonus are still a myth for collectors and finding one is a real feat.
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Post by xavm (Xavier) on Feb 23, 2015 12:58:40 GMT
It is not really difficult to get F2... from Polyommatus, they do easily mate in a cage. However the hydridization follows a complex process which has been described years ago by our Japanese colleagues on Polygonia/ium species (sperm competition: an hybrid can exist only if a female has been first fertilized by a male from the same species, then a second male species can competite)...
Klaus Schurian could successful get some "cormion", although the technic was very odd, but nobody yet could obtain "polonus" hybrids.
I must agree with Olivier that we are lucky such specimen are not commonly seen as opposed to some Papilionidae.
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Post by wollastoni on Feb 23, 2015 13:06:29 GMT
"sperm competition" being the scientific word for "ménage à trois"...
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Post by Adam Cotton on Feb 23, 2015 21:25:04 GMT
I think you will find that only the last mating can actually fertilise the eggs, as the spermatophore blocks the previous one.
Adam.
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Post by nomad on Feb 28, 2015 13:07:02 GMT
Lysandra ( Polyommatus) coridon ab postcaeca. North Wiltshire Downland, England.
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Post by xavm (Xavier) on Mar 24, 2015 10:29:59 GMT
Polyommatus variations (P. coridon x P. albicans x P. hispanus) in Aragon... Almost impossible to find two identical specimen :
Attachment Deleted
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Post by xavm (Xavier) on Mar 31, 2015 15:21:49 GMT
To help understanding the box :
- North of Aragon : P. coridon + bellargus - East of Aragon : P. hispanus +/- bellargus - South of Aragon : P. hispanus + albicans - West of Aragon : Jaca area : P. coridon + hispanus + albinus
............. All species have hybrids in all parts...... : crazy location for Lycaenid lovers
Attachments:
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Post by wollastoni on Mar 31, 2015 17:26:44 GMT
Xavier : splendid and very instructive box ! Must be indeed a spendid collecting spot !
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Post by wollastoni on Apr 29, 2015 15:46:28 GMT
There is a dwarf Lycaena dispar for sale on EBay UK, in case someone needs it.
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Post by nomad on May 25, 2015 19:59:12 GMT
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Post by wollastoni on Feb 29, 2016 14:38:22 GMT
Another rock'n roll Polyommatus aberration from my friend C. Pratt's collection :
This is a Polyommatus coridon, ab. radiata A legendary ab !
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