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Gyula
Member Rosenbergia
Hungary
1064 Posts |
 Posted - 06/11/2011 : 16:33:57
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bonjour, Thailand, 22 mm
Eurybatus? |
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Gerard
Scientific Collaborator
France
5354 Posts |
Posted - 06/11/2011 : 16:55:02
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Eurybatus (Eurybatus) decempunctatus Westwood, 1848
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Francesco
Forum Admin
Luxembourg
9511 Posts |
Posted - 12/11/2011 : 23:21:50
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| Après la clé de Pierre et les tableaux de Robert, je dirais plus pachycornis. |
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horshehden
Member Purpuricenus
Czech Republic
424 Posts |
Posted - 13/11/2011 : 10:16:56
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| Sorry, but it seems to me that all these characters are rather arbitrary... |
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Francesco
Forum Admin
Luxembourg
9511 Posts |
Posted - 13/11/2011 : 13:08:35
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Maybe... but it is the same concerning sibling species.
In some cases males are well different (e.G. Dynastinae, Lucanidae), in some other ones females are well different (Vesperus). In this case, it seems to me that large decempunctata males have really a notably enlarged pronotum with respect to other species.
However, it is necessary to compare long series and specimens having the same size... a thing the author (Takakuwa) really did.
Other thing is identifying specimens through pictures... not always easy. |
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horshehden
Member Purpuricenus
Czech Republic
424 Posts |
Posted - 13/11/2011 : 13:22:55
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In such cases, there should be more or less firm distributional borders. So, is there something like that?
Otherwise, it is impossible to distinguish particular (ie. small) specimens. |
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Francesco
Forum Admin
Luxembourg
9511 Posts |
Posted - 13/11/2011 : 14:19:34
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I am afraid it is the second option...  |
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Gyula
Member Rosenbergia
Hungary
1064 Posts |
Posted - 13/11/2011 : 17:44:02
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| bonjour, Eurybatus pachycornis? |
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Francesco
Forum Admin
Luxembourg
9511 Posts |
Posted - 13/11/2011 : 18:01:16
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| I think so. |
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Thailand: Eurybatus
