Ischyja paraplesius (in Underwing, Tiger, Tussock, and Allied Moths)

Details

Observed
6 Oct 2010 21:19:42
Quality Grade
Research
Location
Tatai Commune, Koh Kong Province, Cambodia
Latitude
11.58
Longitude
103.126944
Accuracy
100m
Added to iNaturalist
10 Jul 2019 18:30:01
Last updated
12 Jul 2019 07:39:12

Identifications and Comments

Identification by geechartier at 10 Jul 2019 18:30:03
Taxon: Ischyja hemiphaea [species]
Identification by bob_borth at 11 Jul 2019 09:03:11
Taxon: Ischyja paraplesius [species]
Comment by geechartier at 11 Jul 2019 15:16:32
@bob_borth Please would you explain why you have suggested I. paraplesius. I looked at both and was leaning in that direction until I saw "research grade" photos of I. hemipaea on here that looked very much like mine. In the end, I opted for that species based on geography. I was using Moths of Borneo to try to distinguish between the two species. http://www.mothsofborneo.com/part-15-16/miscellaneous_i/miscellaneousi_3_11.php http://www.mothsofborneo.com/part-15-16/miscellaneous_i/miscellaneousi_3_10.php
Comment by bob_borth at 12 Jul 2019 01:40:51
On I. paraplesius the outer portion of the forewing is more purplish than in hemiphaea. Also the forewing spots and vertical line look more like paraplesius to me. The male hemiphaea is generally smaller than paraplesius but it is not easy to guage size on the pictures. I have both species from Vietnam but am unfamiliar with Cambodia. This website is very helpful for distribution info. I find Ischyja a very challenging genus to ID
Comment by geechartier at 12 Jul 2019 07:38:52
@bob_borth Thank you.
Identification by geechartier at 12 Jul 2019 07:39:11
Taxon: Ischyja paraplesius [species]

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Observation content (c) Gerard Chartier, some rights reserved (CC BY)