“You can see a few late butterflies such as red admirals up until October, on plants such as dahlias that flower through to the first frosts. However, insects active between November and February are most likely to be bees, especially queen bumblebees and honeybees, though this is very weather-dependent. From March onwards, you start to see the hairy-footed flower bee, which is one of the earliest of the solitary bees on the wing.”
– Helen Bostock, RHS Senior Wildlife Expert