Petavia attenuata

I suspect that this may be Petavia attenuata (Moore, 1879)
Datanga attenuata Moore, 1879, in Hewitson & Moore, Desc. new Indian lepid. Insects Colln. late Mr. Atkinson: 21
FBI, Hampson, Vol. 1, pg. 324, # 693. Separated from Callidula erycinoides (Petavia erycinoides) in the forewing band being red up and reddish-yellow un and narrowing towards the outer margin. In erycinoides, the band is yellow. cf788 and cf789 are definitely Callidula attenuata. This one; less certain. Possibly cd417 is also Callidula attenuata.
http://www.jpmoth.org/~dmoth/Haruta%20Collection/70_Calidulidae/Callidula%20attenuata/Callidula%20attenuata.htm
https://www.inaturalist.org/taxa/544438-Callidula-attenuata, but many incorrectly identified species here.
UK: This observation, cd417, cf788 and cf789 are likely to be Petavia attenuata. The reddish yellow band on the underside is evident in the observations.
Chandra, K., Kumar, V., Singh, N., Raha, A.
and Sanyal, A. K. 2019. Assemblages of
Lepidoptera in Indian Himalaya through Long
Term Monitoring Plots: 1-457. Pl 48. fig. 10. Pg 324.