A collection of observations about butterflies here in Scotland and notes of the butterflies I have seen when on family holidays.
Tuesday, 22 September 2026
Malaga Butterflies July 2026
Friday, 22 January 2021
Red Admiral, Vanessa atalanta
Last June on a lovely sunny day I noticed a Red Admiral, Vanessa atalanta, flying around our hen run, landing on some young nettles, Urtica dioica, that I had previously cut down. Once it had gone I had a look at one particular nettle plant that it had been showing a great interest in and found an egg. Thinking that it wouldn’t have a chance of survival I picked the nettle and put it in some water in the house.
The egg was laid on the 25th June and four days later I noticed that it had hatched. The caterpillar was a clear green colour with a black head and it remained in the smallest leaves at the top of the nettle, where it weaved a small silk shelter.
Friday, 18 December 2020
Painted Lady, Vanessa cardui
Back in 2016 I posted about the Painted Lady and wondered if 2016 would turn out to be a Painted Lady year. As it turns out, it wasn't a bad year, but it was nothing compared with 2019.
At the start of June I received reports of Painted Ladies being seen flying in from the coast and once inland they continued to fly westwards. This seemed very exciting, but it was nothing compared to the second wave of arrivals.
Towards the end of July a second, much bigger, wave arrived. An almost continuous stream of butterflies were seen flying westwards from the coast. By the end of the year I had received records of 5,395 Painted Ladies, but that must have been a fraction of the number that were actually here.
| There are 15 Painted Ladies in this picture! |
To give you an idea I normally receive records of somewhere between 25 to 100 Painted Ladies and the best year before this I received records of 176, so in 2019 we saw 30 times more Painted Ladies than we had ever seen.
These butterflies spend the winter in north Africa and then over three or four generations make their way north to Scotland or Scandinavia. I speculated where ours had flown in from and I imagine it was probably the Netherlands or Denmark. That means that they had flown non-stop over the North Sea for over 600 kilometres. I believe that they can fly up to 150 miles a day, which means that they had been flying for four days and nights. I find this quite remarkable. Although we usually only see butterflies flying when the sun is shining, these butterflies had clearly been flying in the dark.
I remember once experiencing a mass arrival of Red Admirals along the coast on a cold, misty day and thinking that it was remarkable that they were flying on a day like that. However, I guess they have no choice once they have set off over the sea but to continue no matter what the weather.
It used to be thought that the adults perished in the UK, unable to survive the cold winter. However, in 2009 sensitive radar picked them up flying south in enormous numbers. These butterflies were heading back to where their great grandparents set off from earlier in the year.
More recent research has been able to trace where a butterfly has spent its life as a caterpillar by identifying the ratio of Hydrogen isotopes found in the butterfly's wings. This has proved that Painted Ladies found in Europe in early spring have originated from Sub-Sahara Africa. So, they have not only crossed the Mediterranean Sea, but also the Sahara Desert. The round trip, through several generations, is about 12,000 kilometres.
Some of my pictures show quite worn Painted Ladies, but, having flown so far, I think they deserve to be photographed just as much as a pristine example. They are my heroes of the insect world!
Saturday, 21 March 2020
East Lothian Butterflies 2019 Part 1
Sunday, 21 January 2018
East Lothian Butterflies 2017 - Part 2
Saturday, 19 August 2017
Small Blue, Cupido minimus
So, to get me started again here are some pictures of Small Blues, Cupido minimus, that I took back in June on my annual trip down to Burnmouth on the Scottish Borders coast.
They are our smallest UK butterfly. They lay their eggs on Kidney Vetch, but don't occur up here in East Lothian, even though Kidney Vetch grows here.




