Abdomen upperside with two strong white dorsal lines, sometimes partly fused as in Theretra cajus. Forewing upperside similar to Theretra cajus but pale bands and lines less white and lacking the dark line running along Cu from the wing base to the origin of CuA1. Hindwing upperside with beige medial band of variable shade and distinctness, sometimes vary faint.
Male genitalia: Uncus and gnathos similar to Theretra margarita but gnathos has an obvious medial tooth. Harpe weakly curved, spatulate in dorsal view. Phallus with band-like armature broader and longer than in Theretra margarita, teeth less prominent, right process rather short.
The origina of the record of a mature L5 larva found at Oban, UK, posted by "Ambriel" on www.wildaboutbritain.co.uk remains unexplained but is not mapped.