Did you know that globally beetles make up over a third of all known species?! This is something that I’ve only recently learnt so I thought for this week’s Nature Notes I would delve into the world of these insects which play an important role in keeping our gardens healthy.
The month of June is often considered one of the best times to see beetles, when the adults (of most species) emerge looking for a mate. However, with the slow spring and variable weather we’ve had this year, it’s possible that this peak time could be extended.
Beetles belong to the order Coleoptera, they possess robust forewings called ‘elytra’ that are not actually used for flying, but rather to protect the more delicate wings underneath. They come in all shapes, sizes and colours! For instance, there is the 7-spot Ladybird beetle at 6 – 8 mm which looks like its namesake, with bright red elytra and seven black spots, while the world’s largest beetle, the Hercules beetle can reach over 15 cm in length!
A beetle recently spotted on Alderney is the ferocious Green tiger beetle, a beautiful metallic-green species with long purple legs. One of the fastest beetles in the UK and Channel Islands, its speed is an undeniable advantage for attacking its prey.
Beetles play an important role in their environment: they act as pollinators, help break up dead wood and plant matter, and prey on other insects that cause damage to the surrounding environment. Many species of beetle are under threat from loss of habitat, use of pesticides and climate change. However, there are ways we can help them, including making a ‘Beetle Bucket’ for your garden! To find out how and other ways, visit our Wildlife Information Centre to get your free ‘Bring Back our Beetles’ leaflet!