What were your highlights from the City Nature Challenge this year? Although I missed taking part in a public BioBlitz at the Natural History Museum, I enjoyed my own mini BioBlitz in my little London garden – making 99 observations and managing to identify 80 different species. My favourite find was a tiny Bethylid wasp which was the first one I have ever seen. These wasps are just a few millimetres long and are known as ‘flat wasps’ because of their squashed appearance. They are parasitoids of beetle larvae or moth caterpillars.
Have you seen any bee-flies in your garden? Bee-flies look rather like bees but are actually true flies (Diptera). They have round, furry bodies and a long proboscis (tongue) held out straight. The proboscis can sometimes cause alarm but they do not bite or sting and just use it to drink nectar from spring flowers, often while hovering. Flowers with long nectar tubes such as primroses and lungworts are particular favourites, and bee-flies are likely to be important pollinators of these.
A BioBlitz is a race against the clock to find and record as many living things as possible within a specific area over a set period of time. These observations are then used for scientific research and environmental monitoring by our wildlife garden managers and are shared with scientists in the UK and abroad. Our Autumn BioBlitz in the Wildlife Garden was on the 21st October, we had typical autumn weather with a lot of rain, but still saw interesting wildlife.