Ongoing, feel free to contact me with omitted species and evidence of their availability past or present in the UK. Thanks, Viv.
Acherontia atropos (African death's head hawkmoth) is the most widely known of the three species of death's-head hawkmoth. Acherontia species are notorious for a vaguely skull-shaped pattern on the thorax.
Daphnis nerii, the oleander hawk-moth or army green moth, is a moth of the family Sphingidae. It was described by Carl Linnaeus in his 1758 10th edition of Systema Naturae.
Smerinthus ocellatus, known as the eyed hawk-moth, is a European moth of the family Sphingidae.
Sphinx ligustri, known as the privet hawk moth, is a species of moth found in most of the Palearctic ecozone.