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Lenny
Member Purpuricenus
Thailand
361 Posts |
 Posted - 08/01/2019 : 04:17:42
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can I get an I.D. please
18 mm
Chonburi
Thailand |
Lenny |
Edited by - Xavier on 10/01/2019 18:10:15 |
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Xavier
Scientific Collaborator
France
12220 Posts |
Posted - 08/01/2019 : 18:19:43
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| 2 different species, no ? ...or really the same specimen ? |
Edited by - Xavier on 08/01/2019 18:35:11 |
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Lenny
Member Purpuricenus
Thailand
361 Posts |
Posted - 09/01/2019 : 02:35:26
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Yes the same species. the last one taken with flash at night The first two the next day no flash.I add another taken at night
55.52 KB |
Lenny |
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cerambyphil
Member Rosalia
France
675 Posts |
Posted - 10/01/2019 : 11:31:24
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I think it is probably a Derolus sp.
I have an unidentified similar species from continental Malaisia :
244.62 KB
15mm
I suppose you have not catch this cerambycidae for study ? |
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Francesco
Forum Admin
Luxembourg
9454 Posts |
Posted - 10/01/2019 : 22:02:58
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The species might belong to Diorthus.
The genus has been recently revised by Miroshnikov in a revision that I reviewed but that was published all the same with a lot of non-senses, mistakes, missing explications and unsupported reasons.
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Lenny
Member Purpuricenus
Thailand
361 Posts |
Posted - 11/01/2019 : 02:32:55
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Yes cerambyphil I do
have it for study |
Lenny |
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cerambyphil
Member Rosalia
France
675 Posts |
Posted - 11/01/2019 : 09:34:11
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Lenny can you looking at the under surface of femora to see if your insect presents carena like does mine ?
Francesco, can you give us the reference of this article and can you tell me if carena under femora is still a valid character for the genus Derolus ?
Thank you very much. |
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Lenny
Member Purpuricenus
Thailand
361 Posts |
Posted - 12/01/2019 : 08:07:48
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| cerambyphil. Its difficult to see the underside the beetle is very active |
Lenny |
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cerambyphil
Member Rosalia
France
675 Posts |
Posted - 12/01/2019 : 13:06:26
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Ohhhh sorry Lenny, I thought the beast was dead!
If you don't want to kill it, you can put it a few minutes into the freezer to lower its temperature and then quickly observe the ventral surface of the femora. |
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Francesco
Forum Admin
Luxembourg
9454 Posts |
Posted - 12/01/2019 : 18:03:34
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quote:
Originally posted by cerambyphil
Lenny can you looking at the under surface of femora to see if your insect presents carena like does mine ?
Dear Phil, the femoral ridges are not typical of Derolus but of other genera as well, such as Calpazia, Dymasius (s. l.), Derolydnus, Lachnopterus and some African Neoplocaederus.
Now, after Miroshnikov's "revision", we know that Tapinolachnus also shows this character, without knowing any difference to separate it from Derolus... |
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cerambyphil
Member Rosalia
France
675 Posts |
Posted - 12/01/2019 : 21:03:34
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Thank you Francesco, things get more and more complicated !
I do not have enough knowledge to unravel all this, I must absolutely establish identification keys for the tribe concerned. |
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Lenny
Member Purpuricenus
Thailand
361 Posts |
Posted - 15/01/2019 : 12:15:57
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Ventral.I hope this is OK cerambyphil
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Lenny |
Edited by - Lenny on 15/01/2019 12:27:13 |
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cerambyphil
Member Rosalia
France
675 Posts |
Posted - 17/01/2019 : 17:03:08
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Hello Lenny,
Yes it's Ok, I see the 2 carena under each femora.
Untill now, this character associated with a transverse pronotum pointed out the genus Derolus. But as Francesco say, a new work from Miroshnikov is shaking up the established order !!
So, for me it is a unidentified Derolus because I do not know any Derolus from Thailand.
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Topic |
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Thailand: Derolus sp. ?
