Cerambycoidea Forum
Cerambycoidea Forum
Home | Profile | Register | Active Topics | Members | Search | FAQ
Username:
Password:
Save Password
Forgot your Password?

 All Forums
 mixed Cerambycoidea
 fossil and subfossil Cerambycids
 Baltic amber: Mesalocerus tetropoides n. gen.& sp.
 New Topic  Reply to Topic
 Send Topic to a Friend
 Printer Friendly
| More
Author Previous Topic Topic Next Topic  

Francesco
Forum Admin

Luxembourg
7800 Posts

Posted - 02/10/2013 :  18:46:40  Show Profile  Email Poster  Visit Francesco's Homepage  Reply with Quote

76.96 KB

I have recently bought this specimen from Baltic amber and I ask for your opinion.
Later I will insert further pictures.

Body size: 3.5 mm.
The insect belongs to the Cerambycidae, though this picture could give an erroneous idea.
The head exactly corresponds to that of the genus Tetrops (hypognathous, forehead convex, eyes completely divided in 2 parts), but the pronotum seems to belong to Callidium (flat above, densely punctures).
I can not even even recognize the subfamily...
Any suggestion is agreed.

Francesco
Forum Admin

Luxembourg
7800 Posts

Posted - 04/10/2013 :  19:12:52  Show Profile  Email Poster  Visit Francesco's Homepage  Reply with Quote

374.09 KB

Particular of the head
Go to Top of Page

cerambyphil
Member Purpuricenus

France
453 Posts

Posted - 05/10/2013 :  22:08:05  Show Profile  Email Poster  Reply with Quote
N'existe t-il pas un moyen chimique pour dissoudre l'ambre sans abimer l'insecte ?
Go to Top of Page

Francesco
Forum Admin

Luxembourg
7800 Posts

Posted - 06/10/2013 :  12:07:01  Show Profile  Email Poster  Visit Francesco's Homepage  Reply with Quote
Aucun, mais c'est pas nécessaire: on peut regarder l'insecte comme au delà d'une fenêtre.
Go to Top of Page

Jérôme Sudre
Member Rosenbergia

France
1027 Posts

Posted - 29/10/2014 :  21:56:59  Show Profile  Email Poster  Reply with Quote
Je n'y connais rien mais je m'essaye : Saphanus ?? Drymochares ??
Ou peut être Erlandini mais peu probable ...
Go to Top of Page

Francesco
Forum Admin

Luxembourg
7800 Posts

Posted - 29/10/2014 :  22:02:17  Show Profile  Email Poster  Visit Francesco's Homepage  Reply with Quote
Merci Jérôme, tu as été le seul (après une année) à me donner son avis.
En effet, moi aussi je pense qu'il s'agit d'un Spondylidinae... même si la taille minuscule me fait penser plus à Schurmannia (= Alocerus selon Holzschuh)... de toute façon dans ce groupe et pas un lamiaire.
Chose notable, les yeux sont divisé comme les Tetropium.
Go to Top of Page

Jérôme Sudre
Member Rosenbergia

France
1027 Posts

Posted - 30/10/2014 :  19:15:15  Show Profile  Email Poster  Reply with Quote
En effet Schurmannia dont j'ai deux ex en coll n'est pas improbable quant à Alocerus pourquoi pas non plus cependant ce qui est curieux c'est que l'habitus rappel un peu le genre Saphanus ?
Quant à Alocerus et Schurmannia ils sont à mes yeux différents ....Maintenant la systématique en entomologie est très subjective.....
Go to Top of Page

Francesco
Forum Admin

Luxembourg
7800 Posts

Posted - 08/11/2014 :  19:21:10  Show Profile  Email Poster  Visit Francesco's Homepage  Reply with Quote
Alors d'accord: je vais le décrire comme Spondylidinae Anisarthrini n. gen., n. sp.
Go to Top of Page

Francesco
Forum Admin

Luxembourg
7800 Posts

Posted - 19/11/2014 :  07:57:47  Show Profile  Email Poster  Visit Francesco's Homepage  Reply with Quote
quote:
Originally posted by Jérôme Sudre

Quant à Alocerus et Schurmannia ils sont à mes yeux différents
Je suis d'accord.
Les antennes présentent le dimorphisme sexuel d'Anisarthron qui manque chez Alocerus.

Les yeux divisés en deux lobes sont présentes chez les Metalocerus, mais ce genre me semble un peu different au niveau du pronotum (qui en effet il rappelle les Saphanini d’où les Anisarthrini ont évolués).
Go to Top of Page

Francesco
Forum Admin

Luxembourg
7800 Posts

Posted - 29/01/2015 :  11:27:37  Show Profile  Email Poster  Visit Francesco's Homepage  Reply with Quote

126.93 KB

This is the reconstruction I will publish.
Go to Top of Page

Xavier
Scientific Collaborator

France
8220 Posts

Posted - 31/01/2015 :  12:53:16  Show Profile  Email Poster  Reply with Quote
Thanks to show us your nice drawing before the publication .
Just a question : It is impossible - I guess - to see legs or are they all broken ?
Go to Top of Page

Francesco
Forum Admin

Luxembourg
7800 Posts

Posted - 01/02/2015 :  08:41:20  Show Profile  Email Poster  Visit Francesco's Homepage  Reply with Quote
All legs are present but covered by the body.
With my instruments, I cannot manage to observe them but I know that some Museums have the possibility to observe through the amber and reconstruct a 3-dimensional drawing with an impressive precision.
Go to Top of Page

Francesco
Forum Admin

Luxembourg
7800 Posts

Posted - 10/06/2015 :  16:17:53  Show Profile  Email Poster  Visit Francesco's Homepage  Reply with Quote
And this species as well received its name:
Mesalocerus tetropoides n. gen. n. sp. (Anisarthrini)

Abstract of the publication here
Go to Top of Page

nalslan
Member Purpuricenus

China
226 Posts

Posted - 12/06/2015 :  03:37:58  Show Profile  Email Poster  Reply with Quote
Very coooool!
Go to Top of Page
  Previous Topic Topic Next Topic  
 New Topic  Reply to Topic
 Send Topic to a Friend
 Printer Friendly
| More
Jump To:
Cerambycoidea Forum © 2000-08 Snitz Communications Go To Top Of Page
Powered By: Snitz Forums 2000 Version 3.4.07