Seven-Spot Ladybug (Coccinella septempunctata): Ladybird Facts

What does a seven-spot ladybug look like?

The seven-spot ladybug is an oval, strongly domed beetle with shiny orange-red wing cases (elytra). Each wing case carries three black spots, and a seventh spot sits across the join between them, just behind the head. Two small white patches lie on either side of that front spot.

The head and the plate behind it (the pronotum) are black, with a pale white patch at each front corner of the pronotum. The underside and legs are black too. Spot size varies between individuals, and very rarely a beetle has fewer or more than seven spots, but all-dark forms are rare in this species.

Despite the name, a ladybug is not a true bug. It is a beetle, and its hard red wing cases are modified front wings that protect the thin, folded hind wings used for flying. That is why scientists prefer the names ladybird beetle or lady beetle. In North America the species is also known as the seven-spotted lady beetle, often shortened to C-7.

How big is a seven-spot ladybug?

Adults are about 5–8 mm (0.2–0.3 in) long, with most measuring about 6.5–7.8 mm, and about 4 mm (0.16 in) wide. Females are slightly broader and heavier than males, but the sexes look almost identical without a microscope. An adult weighs only tens of milligrams.

The seven-spot is one of the larger common ladybirds in Europe. Ladybirds as a family range from under 1 mm to about 18 mm (0.7 in), and there are more than 6,000 described species worldwide, a small part of the enormous beetle order described in how many species of beetles there are.

Where do seven-spot ladybugs live?

The seven-spot ladybug is native to Europe, including Britain and Ireland, most of temperate Asia east to China and Japan, and North Africa. It lives almost anywhere with plenty of aphids: grassland, crop fields, hedgerows, marshes, forest edges, parks and gardens. It has been found from sea level to about 1,500 m (4,900 ft).

In North America it is an introduced species. Between the 1950s and early 1970s it was released several times to control aphids on farms, without lasting success. Then, in 1973, a wild population was found in New Jersey, apparently from an accidental introduction. From there it spread across the United States and southern Canada and is now one of the most common ladybugs on the continent. It has also been introduced to South Africa.

What do seven-spot ladybugs eat?

Aphids are the seven-spot’s main food, and both larvae and adults hunt them. The species eats at least 24 different kinds of aphid, and it needs a good supply of them to grow and to lay eggs. A single larva eats hundreds of aphids before it pupates.

When aphids run short, adults switch to pollen, nectar, honeydew, fungal spores, thrips and whiteflies. These foods keep them alive but are not enough for breeding. In late summer they feed on pollen to build up fat for the winter, and in early spring they visit early flowers such as blackthorn for nectar. Larvae and adults will also eat ladybird eggs and young larvae, including their own species, when food is scarce. More detail is in what ladybugs eat.

How seven-spot ladybugs find food and fly

Seven-spot ladybugs are active by day and rest at night. They hunt partly by smell. When aphids are attacked they release an alarm scent, and many plants give off particular chemicals when aphids feed on them. Seven-spots are attracted to both signals, which leads them to the busiest aphid colonies.

They are also strong fliers. Radar studies of ladybirds in Britain recorded flights at around 30 km/h (19 mph), at heights of up to about 1,100 m (3,600 ft), and estimated that a ladybird could cover as much as 120 km (75 mi) in a long flight. This mobility lets them move quickly from field to field as aphid numbers rise and fall, and it helped the species spread across North America after it became established there.

Life cycle: egg, larva, pupa and adult

Like butterflies, ladybugs go through complete metamorphosis with four stages. Breeding starts in late spring, after the adults have fed on the first aphids of the year. Females mate with several males and lay small clusters of spindle-shaped, yellow to orange eggs, about 1 mm long, on leaves and stems close to aphid colonies. One female can lay several hundred eggs in a season.

The eggs hatch after about four days in warm weather. The larvae look nothing like ladybugs: they are long, dark gray and spiny, with small orange marks, and are sometimes compared to tiny alligators. A larva first eats its eggshell, then sets off to hunt aphids. It molts three times, passing through four stages, and grows to about 8 mm (0.3 in).

When fully grown, the larva stops feeding, glues its tail end to a leaf or stem and becomes a pupa. After about a week, the adult breaks out. At first it is soft and pale yellow without spots, and its red and black colors appear over the following hours. The whole cycle from egg to adult takes about four to six weeks, depending on temperature and food.

How do seven-spot ladybugs defend themselves?

Bright red and black is a warning signal, a strategy called aposematism. It tells birds and other predators that the beetle tastes bad. The seven-spot backs up the warning with toxic alkaloids, mainly coccinelline and precoccinelline, which it makes in its own body.

When attacked, the beetle performs reflex bleeding: it squeezes drops of bitter, yellow body fluid from its knee joints. The fluid smells strongly and tastes foul, and most predators that try one ladybird soon learn to leave them alone. Ladybirds may also pull in their legs and play dead. Read more in are ladybugs poisonous?

Where do seven-spot ladybugs go in winter?

Adults survive the winter in a dormant state. In autumn they gather in sheltered spots such as grass tussocks, hedgerows, leaf litter, crevices and loose bark, often on south-facing slopes or hilltops. They usually cluster in groups of about 10–15, and gatherings of more than 200 have been recorded.

A scent called a pyrazine helps the beetles find each other at their winter sites, and clustering means mates are close at hand in spring. The beetles become active again as temperatures rise in March or April. Their winter habits, and those of other ladybugs, are explained in where ladybugs go in winter.

Lifespan, predators and parasites

Adults usually live up to about a year, and some survive two winters, but many die during their first winter. Their main predators are some birds, spiders and other ladybirds, while lacewing larvae eat their eggs. The fourth larval stage is especially vulnerable.

A tiny parasitic wasp, Dinocampus coccinellae, lays an egg inside adult ladybirds. When the wasp larva is ready, it crawls out and spins a cocoon between the ladybird’s legs. The partly paralyzed ladybird stays on top, twitching, and its warning colors help protect the cocoon from predators, which is why it is often called a “zombie bodyguard”. Studies of a North American ladybird found that about a quarter of hosts recover once the adult wasp has left.

Conservation status and the harlequin ladybird

The seven-spot ladybug has not been evaluated by the IUCN, and as of 2022 the Red List did not include any ladybird species. It is common and widespread across a huge range, so it is not considered at risk.

The harlequin ladybird (Harmonia axyridis), an Asian species introduced to Europe and North America, now competes with the seven-spot and eats its eggs and larvae. It reached Britain in 2004 and was later described as the fastest-invading species ever recorded in the UK. In North America the roles are partly reversed: the introduced seven-spot is itself among the species blamed for the decline of native ladybugs such as the nine-spotted lady beetle, the state insect of New York, although the exact causes are still debated.

Ladybugs and people

The name ladybird comes from Our Lady, the Virgin Mary, who was often shown in a red cloak in medieval art, and the seven spots were said to stand for her seven joys and seven sorrows. In German the insect is called Marienkäfer, “Mary’s beetle”. Across Europe it has long been seen as a sign of good luck.

Seven-spot numbers sometimes explode in hot summers. In 1976 an estimated 23 billion swarmed along England’s southern and eastern coasts after an aphid boom collapsed, and people reported being nipped by thirsty beetles. Large swarms were seen again in English coastal towns in July 2025.

Farmers value the seven-spot as an aphid predator, but it can cause problems in vineyards. When ladybirds are crushed with grapes, their pyrazines can give wine an unpleasant, green bell pepper or peanut-like taste known as ladybug taint.