Marbled White
Melanargia galatheaThe Marbled White is a striking butterfly with a bold black-and-white pattern. They glide gracefully over flower-rich grasslands and can appear in large numbers during midsummer, sometimes drifting into gardens. Their pale markings contain chemicals that help put off predators while also making them more visible to potential mates. They are mostly found in southern and central areas of the UK, gradually expanding northwards.
A true gem of the summer meadows
Like a flying chessboard, the Marbled White stands out with their bold black-and-white pattern. Despite their name and the artistry of their wings, though, they actually belong to the brown butterfly group.
At night, they hunker down together, resting at half mast on long grass stems.
The light markings on their wings contain chemicals that, as well as being mildly toxic to predators, reflect UV light. As luck would have it, their fellow butterflies, including potential mates, can see UV light, so those beautiful markings play an important role in attracting the right sort of attention.
Marbled Whites are mostly found in south and central areas of the UK. They’re expanding northwards in the UK, but haven’t reached Scotland just yet.
Vibes
Each butterfly is scored out of 100 across a set of traits, from how bold and visible it is to how far it travels or how particular it is about where it lives. These scores compare each species with the other butterflies in Britain, helping you see their differences at a glance. Here’s what makes the Marbled White special.
Bright colours, bold patterns, and a love of the spotlight. Some butterflies just can’t help showing off.
Fast, or throwing some seriously impressive moves, these butterflies are in a flutter.
Always on guard, ready to hide or defend - these butterflies have self-preservation down to an art.
It’s ok to be a little… well, weird. These butterflies have been certified with the freak factor.
Like Goldilocks, everything has to be just right for these perfectionists.
Hard to spot and even harder to forget, these butterflies are a true one of a kind.
Bold, curious, and ready to explore, these brave butterflies live for the thrill and aren’t afraid to travel.
Weather-resistant, battle-hardened, and built to survive, these butterflies know how to take it on the wing.
Chosen By
The Marbled White is a true gem of the summer meadows. By its name, you’d assume that would be a member of the 'White' butterflies but rather confusingly, it is one of the ‘Browns’. Sometimes nick-named the "flying checkerboard" because of its black and white coloration, I used to see these regularly on my daily dog walks, feeding on the yarrow in the meadow, but their numbers have dwindled in the past few years with none there at all last year. That absence felt significant—an unmistakable sign that something in this small ecosystem is changing and a reminder that these are not just beautiful insects, but indicators of what’s happening to the wider habitat and a reminder of how fragile these species are to just a year or two of unfavourable weather. I will be keeping a close and optimistic look-out for them this year…
Marbled Whites often roost together at night, resting halfway down tall grass stems in groups.
Test your knowledge
What helps Marbled Whites attract mates and deter predators?Their pale wing markings reflect UV light and contain mild toxins, which help deter predators and make them more visible to mates.
Does the Marbled White get your vote?