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Max
Member Rosalia
Russia
713 Posts |
 Posted - 16/01/2012 : 22:52:19
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Another vietnamese Rhaphuma.
Probably, Rh. anongi Gressitt & Rondon, 1970?
I don't sure...
S Vietnam, Lam Dong prov., male, 16 mm |
Edited by - Xavier on 01/09/2018 09:16:08 |
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Francesco
Forum Admin
Luxembourg
9420 Posts |
Posted - 17/01/2012 : 22:51:10
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I too... actually, I do not know whether anongi is in reality a variety of R. quadrimaculata Pic...
Such species seems to differ from anongi in the pronotum having 4 spots... but it might be also a variable character. |
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Max
Member Rosalia
Russia
713 Posts |
Posted - 18/01/2012 : 16:35:13
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| In similar situation so difficult without type... Anyhow, thank you for your opinion and confirmation! |
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Francesco
Forum Admin
Luxembourg
9420 Posts |
Posted - 21/01/2012 : 11:27:03
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This is Rhaphuma quadrimaculata Pic, characterised by 4 spots on the pronotum (ex Gressitt & Rondon, 1970). |
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Francesco
Forum Admin
Luxembourg
9420 Posts |
Posted - 21/01/2012 : 11:31:52
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... and this is the type of Rhaphuma anongi, a female with 2 bands on the pronotum.
Actually, the preapical spot of the elytra has a very different shape, but if you look for other "anongi" in this Forum, you will notice a certain variability.
Your specimen has 2 bands like anongi but the preapical spot like quadrimaculata.
Only one species or two? |
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Max
Member Rosalia
Russia
713 Posts |
Posted - 22/01/2012 : 00:50:14
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I have else the corresponding female with the same label, it looks as quadrimaculata (parted spots on pronotum) but with preapical spot, as beside anongi.
But this not so it is important, in my opinion.
The Type anongi looks less elongated and another form of front spots on elytra (beside quadrimaculata sharp, long not dispersing, parallel spots - I seem it is enough typical).
I have named these my beetles quadrimaculata... And... No, it is different species, for me.
Thanks a lot for the pictures of type! |
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Xavier
Scientific Collaborator
France
12077 Posts |
Posted - 24/08/2018 : 17:32:48
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I think it is not a Rhaphuma, but a Demonax sp.
29.81 KB |
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Max
Member Rosalia
Russia
713 Posts |
Posted - 29/08/2018 : 22:57:08
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Well I`m don`t know what is "Demonax" and "Rhaphuma". This feature as small spikes on antennal joints after 3 I can see even for a Rh. gracilipes, Rh. diminuta, Rh. innotata (dissected ex.). So, I have nothing against it if these species will ever Demonax. But I would like to distinguish these two genus on the basis of more serious characters |
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Xavier
Scientific Collaborator
France
12077 Posts |
Posted - 29/08/2018 : 23:38:29
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Sorry Max, but several Demonax have an identical very short "spine" or "tooth" as your species. Because of that small tooth, some Demonax have been described in genus Rhaphuma : Rhaphuma dimidiata Chevrolat, 1863 is now Demonax dimidiatus (Chevrolat, 1863)...But you are right : may be some other Rhaphuma species should be included in Demonax genus.
Anyway, that's why I check both list, Demonax and Rhaphuma species, when I try to find an ID for a species,
Here the key from Gressitt(1970) for the Clytini fauna of Laos...
266.99 KB |
Edited by - Xavier on 30/08/2018 00:04:07 |
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Xaurus
Member Rosenbergia
Germany
1907 Posts |
Posted - 29/08/2018 : 23:57:14
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this sps is very near to R. quadrimaculata and R. quercus with a conspicuous 8. tergite, the apex is visible at Max's spm,
you should prepare the genitals of your male spm, R. anongae has a different 8. tergite |
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Max
Member Rosalia
Russia
713 Posts |
Posted - 30/08/2018 : 00:09:03
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| Yes Xavier, I agree. It`s understandable. Gressit`s key based on these "spines" (it`s simply key for some area). And your idea was based on the same thing too. Look at Rh. diminuta or Rh. gracilipes please (I haven`t good photo right now). If it`s really Rhaphuma`s species as is customary so what are the differences with Demonax? |
Edited by - Max on 30/08/2018 00:25:08 |
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Xavier
Scientific Collaborator
France
12077 Posts |
Posted - 30/08/2018 : 00:10:07
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| It is not R.quadrimaculata, even the drawing is close to. And may be I am wrong and it is not a Demonax ? Really, I do not know. |
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Max
Member Rosalia
Russia
713 Posts |
Posted - 30/08/2018 : 00:37:27
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I do not know either However I`ll prepare it. I need to see what`s inside it. |
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Xavier
Scientific Collaborator
France
12077 Posts |
Posted - 30/08/2018 : 01:10:38
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312.33 KB
If it could help, here 3 specimens from north Laos that I suppose to be Rhaphuma quadrimaculata Pic, 1923.
Holotype specimen of R. quadrimaculata is visible here. |
Edited by - Xavier on 13/05/2019 14:58:18 |
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Max
Member Rosalia
Russia
713 Posts |
Posted - 31/08/2018 : 19:37:20
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| My beetles (I have a female of this sp. too) with very short first elytral band are not a R. quadrimaculata, I agree. |
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Xavier
Scientific Collaborator
France
12077 Posts |
Posted - 31/08/2018 : 21:52:31
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| The first band seems longer too, but have a look to Rhaphuma improvisa Holz. here. |
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Vietnam: Rhaphuma cf improvisa
