I had thought that the cat was Daphnis nerii, but the absence of the blue eye-spots just behind the head made me wonder.
As this is a moth, perhaps this thread could be transferred to that forum, and then Roger may be able to advise the frequency of these 'blind' cats as compared the the blue-spotted ones.
Ah! Thank you. So it is not 'blind'. Roger, kindly disregard my last query!
Thread moved to Moth Photography sub-forum.
These cats eat Oleander, Vinca (Periwinkle) and a number of other "toxic" plants. I believe Adenium is also a "toxic" plant too.
However, the cats and adult moths don't seem to be immune to predators because of this, unlike those of butterflies.
Indeed the Elephant Hawkmoth is placed in Deilephila, as was nerii until quite recently.
One must remember that as yet higher taxonomy, i.e. understanding lineage, has been a rather haphazard process, and in reality still is, even with the advent of molecular techniques. Most analyses undertaken do not involve the complete range of species within a particular group, whether it be the genus, subtribe, tribe or even higher ranks, simply due to the numbers of species involved and their distributions being such that it becomes almost impossible to obtain sufficient material to undertake a complete analysis. The end result is that stability in Lepidopteran taxonomy has yet to be achieved, even for relatively well known groups like the Sphingidae.
cheers, Roger.
Roger C. KENDRICK Ph.D.
C & R Wildlife, Lam Tsuen, Tai Po, N.T., Hong Kong S.A.R.
HK Moths website: http://www.hkmoths.com
HK Moths Recording Project on i-Naturalist: http://www.inaturalist.org/projects/hong-kong-moths
HK Moths Flickr site: http://www.flickr.com/groups/hongkongmoths/
Thanks for the info Roger.
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