標題: [Other] Unidentified Hong Kong macromoths [打印本頁] 作者:
貓魔鈴 時間: 2007-5-21 19:21 標題: Unidentified Hong Kong macromoths
2007/05/12
城門水塘
[ 本帖最後由 貓魔鈴 於 2007-12-19 20:21 編輯 ]
尺蛾科 Geometridae, Geometrinae - Berta sp.
[ Last edited by hkmoths at 2009-5-3 08:41 ]作者:
hkmoths 時間: 2007-5-22 20:36
Not certain of this - the three Berta species that occur in Hong Kong are very similar in external appearance. I made notes this afternoon on the differences, and contrived to leave them in the specimen room, so I will have to wait until tomorrow to confirm the identity of the species posted in the photo. I suspect it is not B. chrysolineata, but one of the other two species (i.e. either B. rugosivalva or B. zygophyxia).
cheers,
Roger.作者:
Shirley 時間: 2007-8-5 20:09
Did this ever get resolved? I also have an unidentified Berta sp at
[ Last edited by hkmoths at 2008-5-25 14:16 ]作者:
hkmoths 時間: 2008-5-25 14:16
even after colour-correcting and gamma correction, I can't place this. Only say it is Noctuoidea - either Noctuidae or Nolidae.
Will have to follow up.
disagree with that - the placement of the black forewing stigmata and the shape of the fasciae (especially the post-medial) is unlike any of those treated in the Cyana guide in the link. There is a strong resemblance in the species to a female Cyana guttifera, but without access to material for comparison, I am most reluctant to say it is guttifera.
I have photos of a further two unidentified Cyana species that remain problematic. http://www.inaturalist.org/observations/895194 (voucher retained) http://www.inaturalist.org/observations/895193
More observations required - i.e. need more people out recording to increase the recording effort to the point where these "rare" species are being observed with sufficient frequency to provide answers to the basic identification questions. Then it will be easier to answer the harder questions like "where, when, why (habitat and host associations)" that then allow questions about need for conservation to be addressed.
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