This is a quote from my Field Guide to Insects of South Africa which I use for almost everything, except in this case where I have to ask Ted's help. He is a star!! :)
"Clear-wing moths - Family Sesiidae : Easily distinguished as their wings lack scales and are transparent with a black, brown yellow or orange border.
Body often banded and legs may be heavily cloaked in hairs. Fan of long hairs at the end of the often-slender abdomen.
Excellent mimics of wasps and bees, day-flying but rarely encounted as they are never common and have a very rapid flight.
Larvae are borers of trees and shrubs and, in temperote regions, may attain pest proportions in orchards.
"Clear-wing moths - Family Sesiidae : Easily distinguished as their wings lack scales and are transparent with a black, brown yellow or orange border.
Body often banded and legs may be heavily cloaked in hairs. Fan of long hairs at the end of the often-slender abdomen. Excellent mimics of wasps and bees, day-flying but rarely encounted as they are never common and have a very rapid flight. Larvae are borers of trees and shrubs and, in temperote regions, may attain pest proportions in orchards.
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