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Post by lucanini on Sept 9, 2012 3:01:03 GMT -8
Hi, Could you please help to identify the species? from North Vietnam And please tell me what is difference between gestroi and fujiokai? Thank you, Attachments:
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Post by lucanidae25 on Sept 9, 2012 4:16:58 GMT -8
C. fujiokai is only found in China and C. gestroi is a lot more widespread. C. fujiokai is a lot more closely related to C. formosanus. The upper hook at the end of the arm on C. gestroi is a lot longer than C. fujiokai and C. fujiokai has a lot less dots than C. gestroi............... your specimens can only be C. gestroi or C. battareli.
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Post by lucanini on Sept 9, 2012 5:25:39 GMT -8
Thanks for replying, yes, I agree it is not Ch. gestroi, maybe battareli. However they are really small size and collect near the border Vietnam-China. Near Guangdong (local type of Ch. fujiokai). But you maybe right, it very possible is Ch. battareli
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Post by lepidofrance on Sept 9, 2012 7:26:25 GMT -8
And what about this one ? Cheirotonus parryi GRAY, 1848 ? From Northern Thailand Many thanks for helping !  Attachments:
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Post by timoinsects on Sept 9, 2012 9:30:46 GMT -8
Cheirotonus' charactors on pattern(appearance) is often hard to be determined among some species, i totally have no idea how the entomologist determined the different species if,for example,two species are very smilar appearance. the only way to devide them is by studying genitalia?  ? i added one more question. if you have experiences of catching Cheirotonus ,please share, your Cheirotonus were all caught by light trap? i found many insects were almost unavailable to catch if without light trap. |
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Post by lepidofrance on Sept 9, 2012 12:50:43 GMT -8
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Post by lucanidae25 on Sept 9, 2012 15:34:20 GMT -8
lepidofrance
Your pic from N. Thailand is definitely C. parryi.
lucanini
If your specimens are from Cao Bang, they can only be C. battareli. I have 2 C. fujiokai in my collecting from Guangdong but they look very different on the pronotum than your specimens. Mine is a lot more shineier on the pronotum and less pitted than yours.
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Post by lucanidae25 on Sept 9, 2012 15:37:24 GMT -8
I only ever collected Cheirotonus from light trap but I know some one else has collected his on tree sap but some time they're very high up in the tree.
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Post by lucanini on Sept 10, 2012 14:17:26 GMT -8
Thank you Lucanidae, my specimens were collected from Ha Giang, that near both border to Guangdong and Guangxi.
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Post by lucanidae25 on Sept 10, 2012 14:45:10 GMT -8
It's definitely C. battareli, only C. battareli is found in Ha Giang. C. fujiokai is only found in Guangdong and Shaanxi, they're not even found in Guangxi.
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