Cautethia grotei
Diagnostic description:
Prominent silvery-grey colour of body and forewing.
Male genitalia: Uncus much longer than gnathos, somewhat hooked apically. Gnathos strongly upcurved, almost forming a semicircle in lateral view, sinuate apically, lobes rounded, somewhat incrassate on the upperside, base of gnathos broad, dilated into a rounded lobe on each side, edge of this lobe, as well as the curved process, rough with short spines. Harpe short, bluntly pointed, not projecting. Phallus without a dorso-apical process.
Female genitalia: Ductus bursae gradually widening into an ovoid corpus bursae. Appendix bursae much larger than corpus bursae.