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標題: [Lymantriinae] 毒蛾科 Lymantriidae, Nygmiini - Arna pseudoconspersa
lamchoping
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發表於 2007-2-26 16:09  資料 文集 短消息 
毒蛾科 Lymantriidae, Nygmiini - Arna pseudoconspersa







[ Last edited by  hkmoths at 2007-2-26 21:42 ]
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發表於 2007-2-26 21:12  資料 文集 短消息 
Arna pseudoconspersa

Lymantriidae, Nygmiini

The top two are males, the bottom one looks like a female.

Used to be placed in Euproctis, before Jeremy Holloway reinstated various genera lumped in this unwieldy "dustbin".

cheers,

Roger.




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lamchoping
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Thank you!
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Chandaiman69
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發表於 2007-2-27 01:21  資料 短消息 
There is a question I always like to ask.
Why is Lymantriidae classification skipping the sub-family level
and go to tribal instead ?
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Chandaiman69
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發表於 2007-2-27 02:51  資料 短消息 
Another question !
Your pdf file listed this E.pseudoconspersa ranges also from Taiwan.
However this is absent from all my Taiwanese literature, which anyway is quite limited.
The only thing they have is E.bipunctapex. Are they synonymic ?

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nadia
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Euproctis bipunctapex, now placed under Arna, is a valid species on its own right.

Euproctis pseudoconspersa's distribution in Taiwan is correct.

Lymantriinae and Orginae are the two subfamilies of Lymantriidae.
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Chandaiman69
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發表於 2007-2-27 10:46  資料 短消息 
Thanx nadia.
Could you enlighten me the way to differentiate these two ?
Both got 2 black apical dots !
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nadia
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發表於 2007-2-27 14:56  資料 文集 短消息 
Please see the self-explanatory composite picture.


圖片: Euproctis.jpg (2007-2-27 14:56, 97.9 K)

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nadia
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發表於 2007-2-27 15:06  資料 文集 短消息 
回覆 #7 Chandaiman69 的帖子

For 'Euproctis' senso lato or any small yellowish tussock moth, dissection of genital is always necessary to confirm ID.   If I call picture 3 in #1 Euproctis bipunctaptex (which indeed may be correct), it is difficult for any one to disprove it if no male is available for 'chopping'.
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發表於 2007-2-27 15:18  資料 短消息 
Thanx again nadia.
So, these 2 can't be ID by external features !
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回覆 #10 Chandaiman69 的帖子

It is hard to say.   All existing photos on books are poor quality pictures.     If people like 'maomorning' and 'Fang Hong Jiang' could take a series of good pictures  with all associated moths collected for dissection by a volunteer, then it may be possible to different the species by morphology.    I have the feeling that the proximicity of the two black dots to the margin vary between the two species.
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QUOTE:
Originally posted by Chandaiman69 at 2007-2-27 01:21
There is a question I always like to ask.
Why is Lymantriidae classification skipping the sub-family level
and go to tribal instead ?

see "Classification within the family" under the Moths of Borneo for Lymantriidae - http://www.mothsofborneo.com/part-5/introduction.php

cheers,

Roger.




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QUOTE:
Originally posted by nadia at 2007-2-27 15:06
For 'Euproctis' senso lato or any small yellowish tussock moth, dissection of genital is always necessary to confirm ID.   If I call picture 3 in #1 Euproctis bipunctaptex (which indeed may be correct ...

Recent (and as yet unpublished) work using mitochondrial DNA analysis by Yen Shen Horn and some of his students has highlighted a large degree of polymorphism within species of the Nygmiini. This makes it essential to examine genitalia to determine to species. The practicality of this is limiting, and should only be done if there is a real need (be it for conservation, agriculture or silviculture). Sometimes we must accept that it will not be possible to obtain an identity to species level just from a photo.

I'll agree that there is a possibility that any one of the three photos could be of Arna bipunctapex; though based on genitalia dis-sections undertaken on this group in HK so far by Tony Galsworthy, the ground colour of bipunctapex has always been less orange-brown, more purple-brown, and the two apical dots of unequal size (the dot at the f/w apex being smaller), rather than of equal size, as in A. pseudoconspersa and in the individuals in the photos posted by lamchoping.

On these points, I'll rephrase my initial "determination" and say probably Arna pseudoconspersa (pending genitalia dis-section!).

cheers,

Roger.

[ Last edited by  hkmoths at 2007-2-28 00:49 ]




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Chandaiman69
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發表於 2007-2-28 05:09  資料 短消息 
Thanx a lot, nadia and Roger.
I'll review my Taiwan folder again to see if I got some pseudoconspersa
masquerading as bipunctapex.
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