Recently I’ve been chasing around after butterflies to take part in the ‘Big Butterfly Count’. This is a UK survey where people from all over the country count the numbers of butterflies and some day-flying moths that they see in a 15-minute period.
(Actually counting the butterflies was quite tricky – some had to be ignored because they were too fast moving for me. A sudden flash of something brownish could be one of many butterflies. How frustrating!)
Butterflies were being counted from the middle of July to the end of the first week in August. Anyone can take part in the butterfly count (the more the better) and from anywhere – gardens, parks, fields or forests.
The butterfly count was set up because butterflies are important as both pollinators and as part of the natural food chain, and because they react quickly to changes in their environment. A decline in butterfly numbers is a strong indication that other wildlife species are also struggling.
Unfortunately, because I was so busy with preparations for the fence being renewed, I only managed the one count right at the end of the survey. By then, there were only a few butterflies left in the garden – several Red Admirals, a couple of Commas and lots of Large Whites (which were probably taking advantage of the neighbours’ veggie patch).
Just a couple of weeks before I did my count, there had been around ten to a dozen Peacock butterflies sunning themselves on our brick path. I had hoped to be able to include them in my count but when the time came, they had all disappeared.
Nor were there any Painted Ladies or Essex Skippers, both of which I often see here. And I think that the Small Tortoiseshell that I photographed in May or June was part of an early brood. I haven’t seen any recently, so maybe there won’t be any from a later brood to overwinter here.
The variability of butterfly numbers here (and those that are scarce or just not seen in my garden) makes me feel that I need to do more to help. Like making sure I don’t weed out the food plants needed for caterpillars! (Nettles and other invasives may have to go in large tubs though.) And I need to do a bit of research to discover more plants that I can grow for butterflies. I hope that next year I’ll be able to count more butterflies in my garden.
Sometimes it feels as if there is nothing much that you can do to help the problems of the world around you. But we’re not as powerless as we may think. Small actions do make an impact, even if it’s only in our own small area.
For me, environmental issues are something that I’ve been aware of for a long time and I’m especially concerned about the challenges faced by pollinating insects.
In an attempt to do what I can to help, I have been trying to increase the number of plants that are good pollen and nectar sources in my garden. It does seem to be a case of ‘plant it and they will come’, because during the last couple of years I’ve noticed a big difference in the number of bees and hoverflies in the garden.
Luckily, just like the bees, I prefer the simpler flowers to highly-bred doubles. (Think of an open bowl-shape that gives easy access to the centre of the flower for short-tongued bees, and tubular flowers like the foxglove for long-tongued bees.)
For spring and summer, the garden has lots of good bee plants. Even in the winter there is mahonia, viburnum and ivy. But late autumn can be a bit sparse, especially after the sedums and asters have finished flowering.
So this year I’m hoping to find a bit more for my late autumn buzzy visitors. Can you imagine a better excuse for a bit of plant shopping?
This week is ‘Bees’ Needs Week’ in the UK and this year there will be online events to raise awareness of what can be done to help bees. You can read more about this and about the work of the Bumblebee Conservation Trust here: https://www.bumblebeeconservation.org/bees-needs/
Bees are not the only pollinators that I’d like to encourage in the garden. Hoverflies are important for pollination and their larvae have a valuable role as predators of aphids and other garden pests. (There are always plenty of greenfly around here, so there should be plenty to keep any hoverfly babies munching!)
It can be easy to confuse hoverflies with bees or wasps. (They don’t sting but they mimic stinging insects so that birds are less likely to try eating them.) If you look at the photo of the honeybee below, you can see that there are differences between the common ‘marmalade hoverfly’ and the bee.
The bee here is generally a bit more furry-looking. (You can just see that there is a hairy patch on the front of the bee’s head and that its thorax is also hairy. Compare that to the thorax of the hoverfly, which is shiny and looks almost metallic in the sun.) The hoverfly has much shorter antennae and has just two wings, whereas the bee has four wings. (It’s hard to see that in the photo. You might just about be able to spot the separation at the back edge of the two wings on the nearest side of the bee.)
However, there are many other types of hoverfly (over 270 in the UK) and some look much more like bees than these. There is a difference that will help you tell which is which. Hoverflies have large eyes which cover the front and side (i.e.most) of their faces. A bee has eyes on the side of its face and they are much smaller and an oval shape.
It’s likely that some of the different ‘bees’ I thought I’d spotted in the garden were really hoverflies. Maybe I’ll learn to identify some of them… if I can move quick enough to photograph them!
It’s very worthwhile to grow flowers that will attract these useful little beasties. They have shorter tongues than bees, so aren’t attracted to some of the deeper, bell-shaped flowers (e.g. foxgloves and penstemons) that bees like. Instead they prefer more open flowers where the nectar and pollen is easy to get at. They really like the daisy types like the aster below and umbellifers such as the fennel and wild carrot that grow in the garden here. One of the flowers that I often find them on is the scabious – as you can see from the photos.
I like watching hoverflies dart around amongst the flowers. They are fast and very agile (even flying backwards) and they add to the feeling of life and energy in the garden. I hope to see lots more of them this year – and maybe a few new ones – even if they do fool me into thinking that they may be bees or wasps!