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Xavier
Scientific Collaborator
France
12099 Posts |
 Posted - 18/03/2017 : 09:28:48
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Dialeges pauper Pascoe, 1857 has been described from "Borneo" & "Malacca"
Dialeges pauperoides Holzschuh, 1984 has been described from "Malaysia, Kg. Sahom ; Taiping ; Cameron Highlands"
Both species have the same range, which is not helpful.
In this post, Francesco tell us, by reading Holzschuh description, that the differences between the 2 species are really unclear.
- For some people, it is a matter of body size, but ...
- For some people, it is a matter of hairs on antennomera, but...
- For some people, it is a matter of pronotum sculpture, but...
Who is able to confirm or affirm something for all subsequent post ?
http://www.cerambycoidea.com/forum/topic.asp?TOPIC_ID=3671
http://www.cerambycoidea.com/forum/topic.asp?TOPIC_ID=23968
http://www.cerambycoidea.com/forum/topic.asp?TOPIC_ID=22254
http://www.cerambycoidea.com/forum/topic.asp?TOPIC_ID=21670
http://www.cerambycoidea.com/forum/topic.asp?TOPIC_ID=21265
http://www.cerambycoidea.com/forum/topic.asp?TOPIC_ID=18528
http://www.cerambycoidea.com/forum/topic.asp?TOPIC_ID=18527
http://www.cerambycoidea.com/forum/topic.asp?TOPIC_ID=18530
http://www.cerambycoidea.com/forum/topic.asp?TOPIC_ID=18524
http://www.cerambycoidea.com/forum/topic.asp?TOPIC_ID=14780
http://www.cerambycoidea.com/forum/topic.asp?TOPIC_ID=12885
http://www.cerambycoidea.com/forum/topic.asp?TOPIC_ID=476
Who is able to prove that 2 species exist, rather than one ? |
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Francesco
Forum Admin
Luxembourg
9420 Posts |
Posted - 18/03/2017 : 11:56:55
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In my opinion, this Beckey's photo is very helpful:
pauperoides (left) and pauper (right)
- pauperoides shows more rounded pronotum and more uniform elytral pubescence.
Females show antennae shorter than body
Body size: 28-44 - pauper shows more squared pronotum and elytral pubescence making two sharp "squares" linked by a longitudinal dark strip
Females show antennae as long as body
Body size: 14-37
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Xavier
Scientific Collaborator
France
12099 Posts |
Posted - 18/03/2017 : 13:07:16
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Thank you  ,
If it is ok for females (antennae shorter vs as long as), I do not see any strong difference in males for the shape of pronotun, neither for elytral pubescence. |
Edited by - Xavier on 18/03/2017 13:07:39 |
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dryobius
Member Rosenbergia
USA
1885 Posts |
Posted - 18/03/2017 : 13:58:11
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D. pauperoides male
439.17 KB
D. pauper male
403.16 KB
S. scabricornis male
442.57 KB |
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dryobius
Member Rosenbergia
USA
1885 Posts |
Posted - 18/03/2017 : 13:59:28
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I forgot to say that all of these are from Sabah.
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Beckey
Member Rosalia
Japan
552 Posts |
Posted - 18/03/2017 : 14:59:29
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70.7 KB
3rd antennomere of male specimens from Peninsular Malaysia.
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Edited by - Beckey on 04/07/2017 22:29:06 |
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Xavier
Scientific Collaborator
France
12099 Posts |
Posted - 18/03/2017 : 18:37:38
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Thanks a lot all guys for your comments  |
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Francesco
Forum Admin
Luxembourg
9420 Posts |
Posted - 04/07/2017 : 07:40:03
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Small update: I have just received a female of D. pauperoides (antennae as long as body, large postmedian black spot) from Sabah measuring 23 mm.
Thus, the updated sizes are:
- pauperoides
Body size: 23-44 - pauper
Body size: 14-37
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Dialeges pauper vs pauperoides
