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Pierre
Member Rosenbergia
Switzerland
1755 Posts |
 Posted - 10/01/2010 : 22:17:34
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Cameron Highlands,
40 mm.
A Trirachys? Aeolesthes? |
Edited by - Gerard on 30/01/2016 11:59:51 |
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Francesco
Forum Admin
Luxembourg
9454 Posts |
Posted - 11/01/2010 : 09:58:56
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For these species, it is necessary to check the ventral side of the head.
If the intergenal furrow is right (Fig. 1), it is Aeolesthes holosericea (Fabricius, 1787), if backward bowed (Fig. 2), it is A. induta (Newman, 1842).
Both species are largely present in Eastern Asia, Malaysia... and in the gallery (here);-)
I guess induta. |
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Pierre
Member Rosenbergia
Switzerland
1755 Posts |
Posted - 12/01/2010 : 19:01:38
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The furrow you mention corresponds to Fig.2, without any doubt. So this designs Aeolesthes induta.
I had received two of these specimen with the determination "Trirachys orientalis". |
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Francesco
Forum Admin
Luxembourg
9454 Posts |
Posted - 13/01/2010 : 08:36:04
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Ok, Aeolesthes induta is right!
Regarding Trirachys, I also noticed that some Aeolesthes-species are sometimes sold with such name; nonetheless, Trirachys orientalis has a distinct spine at each side of the prothorax (here) and a more northern distribution (Laos, China, Japan).
Actually, both genera need a revision. |
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Francesco
Forum Admin
Luxembourg
9454 Posts |
Posted - 22/01/2018 : 19:09:58
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After the revision (here), the name of this species was changed as Trirachys indutus (Newman, 1842).
The true Aeolesthes have spined knees like Eburia spp. |
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Malaysia: Trirachys indutus ♂
