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 Cerambycidae Lamiinae
 Petrognathini
 Ioesse sanguinolenta & rubra?
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Cristian
Member Purpuricenus

Italy
117 Posts

Posted - 20/09/2011 :  15:56:17  Show Profile  Email Poster  Reply with Quote


Aiuto nella classificazione.
Grazie.

Gyula
Member Rosalia

Hungary
801 Posts

Posted - 20/09/2011 :  18:44:12  Show Profile  Email Poster  Reply with Quote
Lamiinae, Petrognathini. Ioesse sanguinolenta Thomson, 1864
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Francesco
Forum Admin

Luxembourg
7704 Posts

Posted - 03/03/2013 :  21:40:17  Show Profile  Email Poster  Visit Francesco's Homepage  Reply with Quote
Coming back to this topic, the specimen at left is Ioesse rubra (Pic, 1925) and that at right Ioesse sanguinolenta.
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Robert
Member Rosalia

Canada
976 Posts

Posted - 03/03/2013 :  22:07:52  Show Profile  Email Poster  Visit Robert's Homepage  Reply with Quote
Taking into account the swelling at apical antennal segments 3-6, both look like sanguinolenta...

What makes you think the left specimen is rubra, Francesco?
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Francesco
Forum Admin

Luxembourg
7704 Posts

Posted - 03/03/2013 :  22:30:15  Show Profile  Email Poster  Visit Francesco's Homepage  Reply with Quote
I observed the different shape of the black spots at both sides of the scutellum.
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Robert
Member Rosalia

Canada
976 Posts

Posted - 03/03/2013 :  23:25:01  Show Profile  Email Poster  Visit Robert's Homepage  Reply with Quote
I guess physical characteristics should prevail over color differences. This being said, maybe the distribution map of the genus can help:


143.48 KB

This map is from OHBAYASHI & LIN, 2012: A review of the Asian genera of the Petrognathini, with description of a New Species and proposal of a new Synonym.

According to that paper, sanguinolenta seems to be restricted to the Malaysian Peninsula. Where are your specimens from, Gyula?
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Francesco
Forum Admin

Luxembourg
7704 Posts

Posted - 04/03/2013 :  09:20:22  Show Profile  Email Poster  Visit Francesco's Homepage  Reply with Quote
Je suis d'accord avec toi que les caractères physiques devraient avoir la prévalence sur ceux de la couleur, mais dans ce cas je ne vois presque pas de regonflement antennaire dans l'exemplaire à gauche.
Il serait le second cas (sur deux) que la tache scutellaire ne concorde pas avec les antennes...

P.s. Ces exemplaires ne sont pas de Gyula, mais de Cristian, qui nous avait écrit qu'ils étaient sans localité.
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Gerard
Scientific Collaborator

France
3625 Posts

Posted - 04/03/2013 :  17:33:42  Show Profile  Email Poster  Reply with Quote

191.04 KB

Malaisie, Perak, Tapah Hills, 41 mm

Je rajoute cette bête qui est I. sanguinolenta selon la carte.
Pas spécialement de renflement.
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