Xestia c-nigrum

MON Part 1, Pl. 14/17.
Chandra et al 2020. Assemblages. Pl. 146/7.
Phalaena (Noctua) c-nigrum Linnaeus, 1758; Syst. Nat. (Edn 10) 1: 516; TL: Europe
http://www.lepiforum.de/lepiwiki.pl?Xestia_C-Nigrum
FBI, Hampson, Vol. 2, Pg. 188, # 1647 as Agrotis c-nigrum.
Similar species
Xestia praetermissa (Warren, 1912)
Rhyacia praetermissa Warren, 1912; 6; TL: India, Nilgiri Hills; Ooty
https://www.mothsofborneo.com/part-12/noctuinae/noctuinae_3_1.php says Xestia praetermissa may be a race of c-nigrum.
Xestia ditrapezium (Denis & Schiffermüller, 1775)
http://www.lepiforum.de/lepiwiki.pl?Xestia_Ditrapezium
FBI, Hampson, Vol. 2, Pg. 188, # 1647 as Agrotis ditrapezium. FW spot is not triangular.