Poplar Hawkmoth Laothoe populi
Fast growing, the larvae feed on most Willows and Poplars. They do well in sleeves or caged.
This is one of the few hawkmoths that produce two broods of moths in the year.
The larvae become very fat and vary in both the ground colour, in shades of green or blue/green, and in their markings which often include red spots as well as the oblique stripes down the sides.
The larvae need to burrow into compost for pupation.