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 Cerambycidae Lamiinae
 Tragocephalini
 Cameroon: Tragocephala descarpentriesi vs castnia
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Bennyboymothman
Member Rosenbergia

United Kingdom
1640 Posts

Posted - 03/10/2020 :  14:32:45  Show Profile  Email Poster  Visit Bennyboymothman's Homepage  Send Bennyboymothman a Yahoo! Message  Reply with Quote

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Hello all.
Not sure on this one, assume a form of nobilis?

Data: Tragocephala sp - Female - 11-2016 - Sangmallma Village - Lobo Division - South Region - Cameroon

Thank you

Edited by - Xavier on 03/10/2020 20:22:17

Jérôme Sudre
Member Rosenbergia

France
1773 Posts

Posted - 03/10/2020 :  20:03:12  Show Profile  Email Poster  Reply with Quote
Alors interprétez ce que j'écris comme vous voulez ? Je pense qu'il s'agit de T gorilla.
Curieusement il présente aussi une certaine similitude avec la forme nigrovittata par contre cette "forme" est a mon avis une bonne espèce mais par manque de matériel difficile de l'affirmer ....
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Xavier
Scientific Collaborator

France
12205 Posts

Posted - 03/10/2020 :  20:21:42  Show Profile  Email Poster  Reply with Quote
Tragocephala gorilla Thomson, 1857 pour le nom complet. Jérôme, je garde un ?
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Bennyboymothman
Member Rosenbergia

United Kingdom
1640 Posts

Posted - 03/10/2020 :  22:08:59  Show Profile  Email Poster  Visit Bennyboymothman's Homepage  Send Bennyboymothman a Yahoo! Message  Reply with Quote
Thank you, not a form i've seen before, with a much reduced central black section.
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Capitaine
Scientific Collaborator

France
1840 Posts

Posted - 04/10/2020 :  18:12:45  Show Profile  Email Poster  Reply with Quote

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Decidedly this tribe presents species with a strong propensity to variation.
Here is a specimen labeled as T. gorilla, does it fit in this variability?
bête de Kloto / Togo / 22 mm

Claude
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Francesco
Forum Admin

Luxembourg
9454 Posts

Posted - 04/10/2020 :  20:47:04  Show Profile  Email Poster  Visit Francesco's Homepage  Reply with Quote
Ceci est la Tragocephala castnia Thomson, 1857.
Quelle est la couleur du côté ventrale?
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Capitaine
Scientific Collaborator

France
1840 Posts

Posted - 06/10/2020 :  11:07:17  Show Profile  Email Poster  Reply with Quote
La face ventrale est noire avec une forte pubescence gris-blanc formant un motif sur chaque sternite en forme de "tabouret", c'est à dire laissant une zône glabre dans la partie centrale inférieure et une zône arrondie de chaque côtés.

Claude
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Francesco
Forum Admin

Luxembourg
9454 Posts

Posted - 09/10/2020 :  22:26:43  Show Profile  Email Poster  Visit Francesco's Homepage  Reply with Quote
Tragocephala castnia cacaoensis Entwistle, 1963, comme celle-ci.
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Francesco
Forum Admin

Luxembourg
9454 Posts

Posted - 09/10/2020 :  22:41:11  Show Profile  Email Poster  Visit Francesco's Homepage  Reply with Quote
quote:
Originally posted by Bennyboymothman


In my opinion, this is not T. gorilla, which should show a yellow ventral side, but Tragocephala descarpentriesi Lepesme & Breuning, 1950.


Lepesme & Breuning, 1950, Longicornia I
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Bennyboymothman
Member Rosenbergia

United Kingdom
1640 Posts

Posted - 10/10/2020 :  00:32:10  Show Profile  Email Poster  Visit Bennyboymothman's Homepage  Send Bennyboymothman a Yahoo! Message  Reply with Quote
Thank you Franceso, I knew it just didn't look right for gorilla, it's a large Tragocephala.
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Jérôme Sudre
Member Rosenbergia

France
1773 Posts

Posted - 10/10/2020 :  13:06:36  Show Profile  Email Poster  Reply with Quote
Oui oui en effet descarpentriesi effectivemment ! Le pire c'est que j'en ai en collection.....

Edited by - Jérôme Sudre on 10/10/2020 13:06:58
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Bennyboymothman
Member Rosenbergia

United Kingdom
1640 Posts

Posted - 10/10/2020 :  15:08:18  Show Profile  Email Poster  Visit Bennyboymothman's Homepage  Send Bennyboymothman a Yahoo! Message  Reply with Quote
Thank you for the confirmation.
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Capitaine
Scientific Collaborator

France
1840 Posts

Posted - 11/10/2020 :  18:18:54  Show Profile  Email Poster  Reply with Quote
Merci Francesco pour Castnia cacaoensis, c'est bien celle là !...

Claude
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