| T O P I C R E V I E W |
| Lenny |
Posted - 08/01/2019 : 04:17:42
 
 
can I get an I.D. please
18 mm
Chonburi
Thailand |
| 12 L A T E S T R E P L I E S (Newest First) |
| cerambyphil |
Posted - 17/01/2019 : 17:03:08
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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| Lenny |
Posted - 15/01/2019 : 12:15:57
Ventral.I hope this is OK cerambyphil
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| cerambyphil |
Posted - 12/01/2019 : 21:03:34
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. |
| Francesco |
Posted - 12/01/2019 : 18:03:34
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... |
| cerambyphil |
Posted - 12/01/2019 : 13:06:26
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. |
| Lenny |
Posted - 12/01/2019 : 08:07:48
cerambyphil. Its difficult to see the underside the beetle is very active |
| cerambyphil |
Posted - 11/01/2019 : 09:34:11
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. |
| Lenny |
Posted - 11/01/2019 : 02:32:55
Yes cerambyphil I do
have it for study |
| Francesco |
Posted - 10/01/2019 : 22:02:58
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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| cerambyphil |
Posted - 10/01/2019 : 11:31:24
I think it is probably a Derolus sp.
I have an unidentified similar species from continental Malaisia :
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15mm
I suppose you have not catch this cerambycidae for study ? |
| Lenny |
Posted - 09/01/2019 : 02:35:26
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
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| Xavier |
Posted - 08/01/2019 : 18:19:43
2 different species, no ? ...or really the same specimen ? |
