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Andre
Member Rosenbergia
Germany
1695 Posts |
 Posted - 21/03/2018 : 10:24:36
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507.78 KB
Dorysthenes dentatus (Fairmaire, 1902) ?
N - Vietnam, Bac Kan Pr., Male, 28 mm |
Edited by - Xavier on 26/03/2018 17:53:25 |
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Capitaine
Scientific Collaborator
France
1841 Posts |
Posted - 25/03/2018 : 12:17:32
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| I agree with D. dentipes (Fairmaire, 1902). |
Claude |
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Andre
Member Rosenbergia
Germany
1695 Posts |
Posted - 26/03/2018 : 12:42:54
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Thank you Claude  |
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Xavier
Scientific Collaborator
France
12220 Posts |
Posted - 26/03/2018 : 17:52:56
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| Dorysthenes (Lophosternus) dentipes (Fairmaire, 1902) for the full name. |
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Andre
Member Rosenbergia
Germany
1695 Posts |
Posted - 03/04/2018 : 10:25:52
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481.98 KB
articles 11/12 |
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Andre
Member Rosenbergia
Germany
1695 Posts |
Posted - 03/04/2018 : 10:28:26
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409.49 KB
Hmmm..... is it the same ? |
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Capitaine
Scientific Collaborator
France
1841 Posts |
Posted - 03/04/2018 : 14:40:37
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On your first picture it seems clearly to be 12 segments. In fact, there is always a confusion between the two species. Taking into account the key (not very clear) given by Fairmaire for the subgenus Lophosternus, angulicolis and dentipes are characterised having 12 articles with a third segment shorter for dentipes. After an accurate examination of several specimens of the two species, many of them have the last antennal segments (11/12) partially merged and this leads to a confusion. In addition, there are some slight variations in the lenght of the third antennal joint. That explain why it's not very easy to differentiate these species reported from the same area.
I have an ex. male of dentipes from Laos with clearly 12 free segments. |
Claude |
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Andre
Member Rosenbergia
Germany
1695 Posts |
Posted - 03/04/2018 : 15:08:20
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Thank you Claude.....  |
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Capitaine
Scientific Collaborator
France
1841 Posts |
Posted - 03/04/2018 : 16:24:07
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417.69 KB |
Claude |
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Vietnam, Dorysthenes: (Lophosternus) dentipes
