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

 All Forums
 Cerambycidae Cerambycinae
 Thraniini
 Tibet: Thranius simplex
 New Topic  Reply to Topic
 Send Topic to a Friend
 Printer Friendly
| More
Author Previous Topic Topic Next Topic  

timoinsects
Member Purpuricenus

China
125 Posts

Posted - 19/10/2012 :  13:44:11  Show Profile  Email Poster  Visit timoinsects's Homepage  Reply with Quote


No. 57

Edited by - Xavier on 31/01/2016 14:14:17

Francesco
Forum Admin

Luxembourg
7809 Posts

Posted - 19/10/2012 :  22:52:10  Show Profile  Email Poster  Visit Francesco's Homepage  Reply with Quote
N 57 genus Thranius.
Go to Top of Page

Francesco
Forum Admin

Luxembourg
7809 Posts

Posted - 04/09/2014 :  09:27:49  Show Profile  Email Poster  Visit Francesco's Homepage  Reply with Quote
No Thranius has been recorded from Tibet, but T. simplex has been recorded from China, Bhutan, Nepal and Sikkim.
So, I think it is this species.
Go to Top of Page

nasa
Member Rosalia

China
907 Posts

Posted - 04/09/2014 :  13:04:39  Show Profile  Email Poster  Reply with Quote
another from Yunnan.


58.4KB
Go to Top of Page

Xavier
Scientific Collaborator

France
8251 Posts

Posted - 05/03/2016 :  09:18:32  Show Profile  Email Poster  Reply with Quote
I think that all those specimens are Thranius granulatus Pic, 1922 like holotype here

I think that the main difference with Thranius simplex Gahan, 1894 is antennomeres 8 and 9 only yellowish like this specimen ... but I have never seen the holotype of T. simplex Gah.
Go to Top of Page

horshehden
Member Purpuricenus

Czech Republic
424 Posts

Posted - 08/03/2016 :  09:53:33  Show Profile  Email Poster  Reply with Quote
Color of antennae can be variable and often differs between males and females. Both type specimens have 8th and 9th antennal segments light.
I cannot distinguish T. simplex and T. granulatus easily.
However, I would say that
http://www.cerambycoidea.com/forum/topic.asp?TOPIC_ID=13996
shows T. granulatus - elytra with clear granules, well separated.
You cannot see anything like that at pictures in this topic - granulation is not so clear and well separated. May be, except the last one. Can you?
If you check the key, it is quite clearly written there.
However, some specimens show rather distinct costae, some not.
Go to Top of Page

Xavier
Scientific Collaborator

France
8251 Posts

Posted - 08/03/2016 :  17:37:28  Show Profile  Email Poster  Reply with Quote
All my specimens of T. granulatus from Laos are exactly like the type (and this one from Tibet) : 8th and 9th antennomera are yellow. You say that "Color of antennae can be variable and often differs between males and females", could you show us such specimen ?
Go to Top of Page

horshehden
Member Purpuricenus

Czech Republic
424 Posts

Posted - 08/03/2016 :  19:01:53  Show Profile  Email Poster  Reply with Quote
Ignore antennae and check the granulation.
Colour varies (not reliable feature), for example, in T. obliquefasciatus (= T. capucinus) females have 8th+9th light, while males dark.
Go to Top of Page

Xavier
Scientific Collaborator

France
8251 Posts

Posted - 08/03/2016 :  19:07:05  Show Profile  Email Poster  Reply with Quote
Possible, but show me please different specimens from the type.
Go to Top of Page

horshehden
Member Purpuricenus

Czech Republic
424 Posts

Posted - 10/03/2016 :  20:18:17  Show Profile  Email Poster  Reply with Quote
Most probably, I do not have any specimen of T. simplex - all my specimens have granulated elytra, not punctured.
All females have 8th+9th segment ligth. Both males are defected with 8 segments only (all dark).
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