Isodemis serpentinana

Isodemis serpentinana (Walker, 1863). Sexually dimorphic. Female.
Batodes serpentinana Walker, 1863. Cat. Lep. Het. B. M. 28:317. TL: Sarawak, Borneo. Text at https://www.biodiversitylibrary.org/item/120180#page/341/mode/1up for male.
Forewing without a semicircular pattern above dorsum. Forewing without an annular pattern at middle.
Similar species: I. stenotera Diakonoff, 1983. Extralimital species, best separated from Isodemis serpentinana by examining genitalia.
Sun, Y. and Li, H., 2011. Review of the genus Isodemis Diakonoff (Lepidoptera, Tortricidae) from China, with description of three new species. ZooKeys, (77), p.51-64. Fig. 2-3 for male. Fig. 4 for female.

Isodemis Diakonoff, 1952 species known from India (Pathania et al 2020).
Isodemis illiberalis (Meyrick, 1918)
Isodemis serpentinana (Walker, 1863)
Pathania, P.C., Das, A., Brown, J.W. and Chandra, K., 2020. Catalogue of Tortricidae Latreille, 1802 (Lepidoptera: Tortricoidea) of India. Zootaxa, 4757(1), pp.1-95.

Isodemis illiberalis (Meyrick, 1918)
Tortrix illiberalis Meyrick, 1918. Exot. Microlep. 2: 168. TL: Sikkim.
Forewing with a semicircular pattern above dorsum. Subapical blotch extending from costal margin to tornus. Hence not Isodemis illiberalis.
JD : Microlepidoptera of the Philippine Islands, pg 29-30 & figs 513 & 514 (male / female) on pg 418,
Agree with ID, but stenotera from China is very similar .

JR: I agree with the ID. a good observation indeed!