Here’s a photo of one of our largest flies, the Pellucid or Large Pied-hoverfly Volucella pellucens that I took back on the 8 July 2012 in Marlborough while I was in the middle of a RiverFly survey on the River Og. Pellucid means transparent or translucent and in this instance refers to the ivory-white band across the abdomen, which if caught in the right light enables you to see through its middle. This and the dark spot on each wing makes this species quite easy to identify in the field.
As I left the office for lunch the other day (Wednesday 28 January) I saw my first butterfly of 2015, a rather tatty Red Admiral Vanessa atalanta similar to this one I photographed last year. This took me by surprise momentarily as it was quite a cold day. It was fluttering around inside the glass canopy that covers the Holly-lined pathway that leads to the entrance of the building and that I suspect was the reason. The combination of the low winter sun and the shelter from the icy wind had warmed it sufficiently to have woken it from its slumber.
The Red Admiral is predominantly a summer migrant that most often arrives in the UK in May and June but a small population do overwinter in the south of Britain and therefore this butterfly is also considered a resident. Unfortunately this hibernation strategy is a risk as many individuals will not survive our winter unless conditions are mild.
However, global warming may help it to become more firmly established as a resident species in the future.
Have you seen your first butterfly of 2015 yet?