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 Cerambycidae Lamiinae
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 Vietnam: Pseudoechthistatus holzschuhi
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Bennyboymothman
Member Rosalia

United Kingdom
791 Posts

Posted - 10/10/2014 :  09:16:50  Show Profile  Email Poster  Visit Bennyboymothman's Homepage  Send Bennyboymothman a Yahoo! Message  Reply with Quote

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Hello again.

This is a new species for me that I received a few weeks back.

Any help appreciated.

Thanks
Ben

Data: 06-2014 - Sapa MT - Lao Cai Prov - Vietnam

Sergi
Member Rosenbergia

Spain
1245 Posts

Posted - 10/10/2014 :  10:46:19  Show Profile  Email Poster  Reply with Quote
Maybe Pseudoechthistatus obliquefasciatus Pic, 1917
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Bennyboymothman
Member Rosalia

United Kingdom
791 Posts

Posted - 10/10/2014 :  18:09:19  Show Profile  Email Poster  Visit Bennyboymothman's Homepage  Send Bennyboymothman a Yahoo! Message  Reply with Quote
Sergi, thanks that has pointed me in the right direction.
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horshehden
Member Purpuricenus

Czech Republic
424 Posts

Posted - 30/07/2016 :  18:06:42  Show Profile  Email Poster  Reply with Quote
Pseudoechthistatus holzschuhi Bi et Lin, 2016
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Capitaine
Scientific Collaborator

France
1174 Posts

Posted - 31/07/2016 :  12:07:40  Show Profile  Email Poster  Reply with Quote

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Good, but what's the differences between holzschuhi and obliquefasciatus?
It is a synonym or the 2 species are located in the same country?

Here a specimen from same station (Lao Cai / Vietnam).
It's clear that the antenal joints are not identical in lenght (third and fourth) and coloration (white part on the third and the following).


Claude
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Francesco
Forum Admin

Luxembourg
7800 Posts

Posted - 31/07/2016 :  12:18:43  Show Profile  Email Poster  Visit Francesco's Homepage  Reply with Quote
Pseudoechthistatus obliquefasciatus est présent seulement en Chine.
La taxinomie te la distribution de ce genre sont déjà ajournés sur BioLib.
Je peux t’envoyer l'article, si tu ne l'as pas.
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horshehden
Member Purpuricenus

Czech Republic
424 Posts

Posted - 31/07/2016 :  12:39:16  Show Profile  Email Poster  Reply with Quote
The main difference between the two species you mentioned is in the general appearance (elytra rather parallel for holzschuhi; elytra widened near middle and humeri narrower) and surface of elytra.

Moreover, P. obliquefasciatus is rather wingless species (wings strongly reduced) while P. holzschuhi can probably fly (wings well developed).

It seems that specimens from Lao Cai show some variability in length of antennae and a little in granulation of elytra. That's why I initially assumed they should belong to different taxon than the Holotype from south Yunnan (Jinping).

There is one more species in Vietnam (Cao Bang province), but its elytra are completely glabrous and smooth (P. glabripennis). I think, it was also offered by some traders but I do not remember if I downloaded the Picture [I found it - it was offered last summer from "north Vietnam"].

As concerns the figures above, probably it is a male and female... Notwithstanding, in both cases I can see some whitish hairs on some antennal segments.

Edited by - horshehden on 31/07/2016 12:49:22
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Capitaine
Scientific Collaborator

France
1174 Posts

Posted - 31/07/2016 :  16:48:57  Show Profile  Email Poster  Reply with Quote
Thank you both Francesco and Tomas.
Je suis preneur pour l'article, merci d'avance Francesco

Claude

Edited by - Capitaine on 31/07/2016 16:51:35
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Francesco
Forum Admin

Luxembourg
7800 Posts

Posted - 31/07/2016 :  18:37:59  Show Profile  Email Poster  Visit Francesco's Homepage  Reply with Quote
quote:
Originally posted by Capitaine

Je suis preneur pour l'article, merci d'avance Francesco

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