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 Cerambycidae Lamiinae
 Gyaritini
 Vietnam: Yimnashana bellula PT
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Larry Bezark
Member Macrodontia

USA
2370 Posts

Posted - 02/08/2015 :  17:18:12  Show Profile  Email Poster  Reply with Quote

64.98 KB

7mm from Bi Doup National Park

very nice pronotal spines/hooks and basal elytral protuberances

Larry B.

Edited by - Xavier on 15/03/2025 22:01:13

dryobius
Member Rosenbergia

USA
1889 Posts

Posted - 02/08/2015 :  17:57:38  Show Profile  Email Poster  Reply with Quote
maybe you can start with Acanthocinini here.. some of them have these types of spines
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Francesco
Forum Admin

Luxembourg
9492 Posts

Posted - 02/08/2015 :  20:09:28  Show Profile  Email Poster  Visit Francesco's Homepage  Reply with Quote
It is a Gyaritus (Gyaritini).
Are eyes entire or divided in two lobes?
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jplami
Member Rosalia

France
656 Posts

Posted - 02/08/2015 :  20:33:21  Show Profile  Email Poster  Visit jplami's Homepage  Reply with Quote
Espèce ou forme proche de Gyaritus auratus avec des bandes élytrales foncées moins larges et moins prononcées (surtout la post-médiane) que sur la forme typique (ou sur le Gyaritus de l'autre post)

Lamiaires du MondeLamiines of the WorldCerambycidae Lamiinae

Edited by - jplami on 02/08/2015 20:55:19
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Larry Bezark
Member Macrodontia

USA
2370 Posts

Posted - 03/08/2015 :  05:11:54  Show Profile  Email Poster  Reply with Quote
Francesco, the eyes are divided but not completely,
the lobes are connected by 3-4 rows of ommatidia.

JP, yes this one is very different that the type of G. aurata, especially the apical third of the elytra with the somewhat opposite sinuate dark marks.

Does anyone know G. quadridentatus Pic from Vietnam?

Larry B.
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jplami
Member Rosalia

France
656 Posts

Posted - 03/08/2015 :  19:52:48  Show Profile  Email Poster  Visit jplami's Homepage  Reply with Quote
Extrait de la clé des Gyaritus (Gyaritus) de Breuning, 1979:4 (révision des Gyaritini)
1. Le troisième article des antennes plus long que le scape ... 2 (11... G auratus)
- Le troisième article des antennes moins long que le scape ... 12 (13... G quadridentatus)

Extrait Breuning, 1979: 5
3. quadridentatus Pic
Mimoenispia quadridentata Pic, 1936 Mél. exot. Ent., LXVII, p. 18.
Proche de hamatus Pasc., mais plus grand, les épines discales du pronotum non recourbées et moins longues, les épines latérales du pronotum minimes, les lobes inférieurs des yeux aussi longs que les joues, le tubercule dentiforme postbasilaire de l'élytre plus élevé; sur chaque élytre une bande transversale basilaire brune, une autre bande médiane pareille descendant obliquement en direction de la suture et une troisième bande brune préapicale descendant très obliquement en direction du bord latéral; le restant de l'élytre couvert de pubescence jaune d'ocre.
Long.: 9 mm; larg.: 2 mm.
Décrit par Pic sur des individus du Tonkin: Hoa-Binh.


Lamiaires du MondeLamiines of the WorldCerambycidae Lamiinae

Edited by - jplami on 03/08/2015 19:56:55
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Larry Bezark
Member Macrodontia

USA
2370 Posts

Posted - 04/08/2015 :  17:17:13  Show Profile  Email Poster  Reply with Quote
Thanks Jean-Philippe,

as it turns out, both of my specimens have the 3rd antennal segment longer than the scape (as in auratus), however this one is different than the type of auratus.

I would like to see an image of quadridentatus.

Larry B.
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jplami
Member Rosalia

France
656 Posts

Posted - 04/08/2015 :  19:15:39  Show Profile  Email Poster  Visit jplami's Homepage  Reply with Quote
I don't think it's G quadridentatus.
Breuning, 1950 also described G siamensis but the elytral pattern is different (with gold postmedian mark).
From the indochinese region (S-China included), I don't know any other species. Probably it's new...

Lamiaires du MondeLamiines of the WorldCerambycidae Lamiinae
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Larry Bezark
Member Macrodontia

USA
2370 Posts

Posted - 04/08/2015 :  19:25:03  Show Profile  Email Poster  Reply with Quote
Thank you,

Larry B.
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Xaurus
Member Rosenbergia

Germany
1956 Posts

Posted - 30/05/2024 :  23:10:03  Show Profile  Email Poster  Reply with Quote
Yimnashana bellula Holzschuh, 2025, female left (7.8mm) and male right (6.9mm), both are PT's, from Bidoup NP S-Vietnam


206.14 KBthe same

Edited by - Xaurus on 15/03/2025 20:03:36
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Larry Bezark
Member Macrodontia

USA
2370 Posts

Posted - 15/03/2025 :  21:03:02  Show Profile  Email Poster  Reply with Quote
Thank you Andreas,

Sorry to be song long seeing this.

Francesco has the specimen(s).

Hopefully he can now update the name and return the specimen.

Regards,

Larry B.
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Xavier
Scientific Collaborator

France
12328 Posts

Posted - 16/03/2025 :  08:39:30  Show Profile  Email Poster  Reply with Quote
What are the article references?
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Xaurus
Member Rosenbergia

Germany
1956 Posts

Posted - 17/03/2025 :  00:34:47  Show Profile  Email Poster  Reply with Quote
Sorry, not yet published !
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Larry Bezark
Member Macrodontia

USA
2370 Posts

Posted - 17/03/2025 :  01:13:06  Show Profile  Email Poster  Reply with Quote
Andreas, if Francesco provides you the data on my specimen(s) is there time for it to be a paratype?

Larry B.

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Xaurus
Member Rosenbergia

Germany
1956 Posts

Posted - 18/03/2025 :  22:31:52  Show Profile  Email Poster  Reply with Quote
I think the new journal Les Cahiers de ... is already in print, but you can ask E. Jiroux
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