Quick answer
Most British garden butterflies can be identified by colour and wing markings: look for the Red Admiral (black wings with red bands and white spots), the Peacock (large eyespots on rich red-brown wings), the Small Tortoiseshell (orange with black and blue-edged borders), and the cabbage-loving Large and Small Whites. When you spot a butterfly, note four things: overall colour, wing markings, size, and where and when you saw it.
How to identify a British butterfly
Name the UK's common garden butterflies using colour, wing markings, habitat, and season.
- 1
Note the overall colour and wing pattern. Start with the dominant colour and the pattern on the open wings — broad red bands, large eyespots, or orange tips are all strong first clues.
- 2
Look for distinctive markings. Check for eyespots (Peacock), white wing tips (Red Admiral), or a chequered orange-and-brown pattern, which separate the common species quickly.
- 3
Note the habitat and season. Where and when you see the butterfly helps: many garden species peak in summer, while a few, such as the Brimstone, appear early in spring after hibernating as adults.
- 4
Match to a species. Combine colour, markings, habitat, and season and compare against a trusted guide such as Butterfly Conservation to confirm the species.
What to look for
Note four things when you spot an unfamiliar butterfly: overall colour, wing markings (bands, spots, eyespots, edge patterns), size (compared to something familiar — a house sparrow is a useful benchmark), and where and when you saw it. Most species have a signature feature — the Peacock's eyespots, the Red Admiral's red bands, the Comma's ragged wing edges — that clinches the identification.
Common UK butterflies at a glance
| Butterfly | Key feature | When seen | Typical habitat |
|---|---|---|---|
| Red Admiral | Black wings with broad red bands and white spots at the tips | Year-round; peak summer–autumn | Gardens, woodland edges, nettles |
| Peacock | Rich red-brown wings with four large blue-and-yellow eyespots | Spring & late summer; hibernates as adult | Gardens, meadows, hedgerows |
| Small Tortoiseshell | Orange with black-and-blue-edged scalloped borders | Widespread; several broods spring–autumn | Gardens, roadsides, nettles |
| Large White | White with black-tipped forewings; female has two black spots | Spring–autumn; common | Gardens, vegetable patches, farmland |
| Small White | Smaller than Large White; one small grey spot on forewing | Spring–autumn; very common | Gardens, farmland |
| Comma | Orange-brown with ragged, deeply scalloped wing edges; small white 'comma' mark underneath | Spring & late summer | Woodland edges, gardens, hop fields |
| Brimstone | Leaf-shaped wings; male bright lemon-yellow, female pale greenish-white | One of the first spring species; also late summer | Woodland, hedgerows, gardens |
| Painted Lady | Salmon-pink and black with white spots; pale hindwing underside | Summer; migrant from North Africa | Open country, gardens, thistles |
| Orange Tip | White with vivid orange tips on forewings (male only); female white with black tips | Spring only (single brood) | Hedgerows, meadows, roadsides |
| Holly Blue | Pale lavender-blue with small dark spots; underside whitish with small dots | Two broods: spring and summer | Gardens, woodland edges, holly, ivy |
Species in detail
Red Admiral
One of the most distinctive UK butterflies. Its velvety black wings have a bold red band across the forewing and a narrower one at the hindwing edge, plus a cluster of white spots near each wingtip. The underside is intricately marbled. Red Admirals are partly migratory — the UK population is supplemented each year by individuals arriving from continental Europe and North Africa. They are drawn to rotting fruit in late summer and are a regular sight in gardens through to October.
Peacock
The Peacock is unmistakable: rich red-brown wings each bearing one enormous blue, yellow, and black eyespot — four in total. These eyespots are thought to startle predators. The underside of the wings is almost entirely dark, providing camouflage when the butterfly rests with wings closed. Peacocks overwinter as adults, often in sheds or hollow trees, and emerge on the first warm days of late winter. They are especially fond of buddleia and nettles.
Brimstone
The Brimstone is one of the species believed to have inspired the word "butterfly" — the vivid yellow male was a "butter-coloured fly." Its leaf-shaped wings (pointed, with a distinctive shape unlike most butterflies) make it easy to identify. Males are a strong lemon-yellow; females are a pale greenish-white that blends remarkably well with leaves. The Brimstone is one of the longest-lived British butterflies, surviving as an adult for up to 12 months, and is among the first butterflies on the wing each spring.
Orange Tip
The Orange Tip is the hallmark butterfly of spring. Males have vivid orange tips to their white forewings that are unmistakable; females are white with black (not orange) tips and are sometimes mistaken for small whites. Both sexes have a beautiful dappled green-and-white pattern on the underside of the hindwing — excellent camouflage when resting on flowers. It has a single brood and flies from April to June.
British butterflies: FAQs
When is the best time to see butterflies in the UK?
Most British butterflies are active from late spring through early autumn, peaking on warm, sunny days from June to August. Some species overwinter as adults — notably the Brimstone, Small Tortoiseshell, Peacock, and Comma — and may emerge on mild winter days. The Brimstone is often seen as early as February or March on the first warm days of the year.
What is the difference between a butterfly and a moth?
The distinction is informal rather than a strict biological divide, but in the UK there are reliable general rules: butterflies are active by day, have club-tipped antennae, and hold their wings upright when resting. Moths are usually nocturnal, have feathery or thread-like antennae, and tend to rest with wings flat or tent-like. There are exceptions — notably the striking day-flying Cinnabar moth and Burnet moths — so always note the antennae shape if you want to be sure.
How do I attract butterflies to my garden?
Plant nectar-rich flowers: buddleia, lavender, verbena bonariensis, sedum, and knapweed are particularly effective. Leave some areas wild — a patch of nettles supports the caterpillars of Red Admiral, Peacock, Small Tortoiseshell, and Comma. Avoid pesticides. Provide flat, sunny spots on stones or paths where butterflies can bask and warm up.
Which UK butterfly appears first in spring?
The Brimstone is one of the first, often emerging from hibernation in late February or March on the first mild days. The Peacock, Small Tortoiseshell, and Comma also overwinter as adults and can appear early. The Orange Tip, which overwinters as a pupa, is the signature butterfly of April and May.
Are UK butterfly populations declining?
Yes. Butterfly Conservation reports that 80% of UK butterfly species have declined in abundance or distribution since the 1970s. Causes include habitat loss, agricultural intensification, pesticide use, and climate change altering the timing of plant and butterfly cycles. Rewilding initiatives and garden wildlife gardening are meaningful ways to help.