Silver-striped Hawk-moth Hippotion celerio
Wingspan 70-80 mm.
A rare immigrant species, rarely occurring in more than a handful of records, and in some years not at all.
The most frequent time of arrival is autumn, and the species has been found throughout England and even in Scotland.
The caterpillar rather resembles that of Elephant Hawk-moth but is rarely found in Britain. It feeds on plants such as bedstraw (Galium) and willowherb (Epilobium).