The dark brown adults of this species have bright orange hindwings. They closely resemble a hummingbird in flight and when hovering at a flower. Unlike most hawk-moths, this is a day-flying species and is usually seen visiting flowers in sunshine.
Pupates close to the ground in leaf litter or in the leaves of the food plant.
Anywhere.
Recorded in 143 (53%) of the 270 2km squares of Huntingdonshire.
Last recorded in July 2023
Recorded date range (Adult): 19 January to 20 December
Recorded date range (Larva/Leafmine): 15 August to 15 August