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 Cerambycidae Lamiinae
 Tmesisternini
 Sulawesi: Sulawesiella sp
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Xaurus
Member Rosenbergia

Germany
1923 Posts

Posted - 29/04/2021 :  23:42:47  Show Profile  Email Poster  Reply with Quote
yes, really different, its a bity the male genitals are feeding by a crime beetle, I my coll. there is a female too, looks very strange, I'll make a picture next days.
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Xavier
Scientific Collaborator

France
12211 Posts

Posted - 01/05/2021 :  11:21:48  Show Profile  Email Poster  Reply with Quote
With a spine at sides of the apex of last sternite, this species is not a Sulawesiella sp., but a Tmesisternus sp.

Edited by - Xavier on 20/05/2021 07:22:17
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Francesco
Forum Admin

Luxembourg
9454 Posts

Posted - 01/05/2021 :  11:56:28  Show Profile  Email Poster  Visit Francesco's Homepage  Reply with Quote
I think that Sulawesiella is a not completely supported genus...
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Xavier
Scientific Collaborator

France
12211 Posts

Posted - 01/05/2021 :  12:50:21  Show Profile  Email Poster  Reply with Quote
Let's wait Andreas...
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Xavier
Scientific Collaborator

France
12211 Posts

Posted - 01/05/2021 :  13:08:29  Show Profile  Email Poster  Reply with Quote
But I have check some males of Tmesisternus species in my collection : apex of last sternite with spines.
No spine at apex of males of S.rafaelae (checked too) . Anyway, it is enought to say that my species is not S.rafaelae.

Edited by - Xavier on 01/05/2021 13:09:43
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Xaurus
Member Rosenbergia

Germany
1923 Posts

Posted - 02/05/2021 :  00:18:17  Show Profile  Email Poster  Reply with Quote
Wou, very interesting, your spms (male + female) have spines at the end of the last sternite, so it should be a Tmesisternus (like the former Tmesisternopsis from Sulawesi), the toment or pattern is a bit similar to T. albari Withaar but the pronotum is very different.
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Xavier
Scientific Collaborator

France
12211 Posts

Posted - 02/05/2021 :  09:30:12  Show Profile  Email Poster  Reply with Quote
Yes, I start the description of this species; do you have more material ?
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Xavier
Scientific Collaborator

France
12211 Posts

Posted - 17/05/2021 :  20:15:42  Show Profile  Email Poster  Reply with Quote

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It is a Sulawesiella n sp.: The examination of the apophyses of the prosternum and mesosternum leaves no doubt; I have enough information to describe this new species.

Edited by - Xavier on 17/05/2021 20:33:37
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Xaurus
Member Rosenbergia

Germany
1923 Posts

Posted - 19/05/2021 :  23:52:37  Show Profile  Email Poster  Reply with Quote
yes, the mesoventral process corresponds to Sulawesiella, and what's about the spines at the end of the last sternite like in Tmesisternus, or ??
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Xavier
Scientific Collaborator

France
12211 Posts

Posted - 20/05/2021 :  07:16:56  Show Profile  Email Poster  Reply with Quote
The male has long, sharp spines; the female has blunt spines, reduced to simple angles.
But I have checked again more specimens of S. rafaelae: this species sometimes has short spines !

I think that spines are not a criterion for separating Sulawesiella and Tmesisternus:

In WEIGEL A. & WITHAAR G., 2006.Notes on the taxonomy of the genera Tmesisternopsis Breuning, 1945 and Tmesisternus Latreille, 1829 , with description of a new genus from Sulawesi, wrote for Sulawesiella rafaelae:
Venter: with gold-green metallic pubescence; all tergites with a triangular black area with apical base, the small spine at each side of the apex of last abdominal sternite hidden by strong hairs and barely visible; in male, apex of last abdominal sternite weakly concave truncate, and in female more convex truncate.

Edited by - Xavier on 20/05/2021 07:35:48
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Francesco
Forum Admin

Luxembourg
9454 Posts

Posted - 30/05/2021 :  18:42:13  Show Profile  Email Poster  Visit Francesco's Homepage  Reply with Quote

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Pair of Sulawesiella from Mamasa.

It seems to me that the pronotum of male is not so inflated as the previous image. It does not differ a lot from that of female.
The antennae of male are not as long as elytra.
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Xavier
Scientific Collaborator

France
12211 Posts

Posted - 13/06/2021 :  10:25:48  Show Profile  Email Poster  Reply with Quote

292.85 KB

The genitalia of the male being destroyed, I don't see how to go further: I am not sure that the differences I see (length of the antennae, shape of the last sternite, sides of the pronotum, pilosity, etc.) are to be attributed to a new species or a variety...

Da die Genitalien des Männchens zerstört sind, weiß ich nicht, wie ich weiter vorgehen soll: Ich bin mir nicht sicher, ob die Unterschiede, die ich sehe (Länge der Fühler, Form des letzten Sternits, Seiten des Pronotums, Pilosität, usw.) einer neuen Art oder einer Varietät zuzuordnen sind...


Edited by - Xavier on 13/06/2021 10:38:31
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