This video, by Rob van der Graaf in the Netherlands, shows a hummingbird hawk-moth in slow motion.
In the February 2016 issue of the magazine of the botanical garden in Leiden, the Netherlands, Hans Adema also reports on moths and molluscs.
In 2015, some usually rare moth species visited the garden. There was a broad-bordered bee hawk-moth.
And there were several hummingbird hawk-moths.